30831840

素因数分解:

$2^5\times 3^5\times 5^1\times {\mathrm{13}}^1\times {\mathrm{61}}^1$

素因数の和:104

約数の個数: 288

約数和(自身を含む): 119429856

約数和(自身を除く): 88598016

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 13, 15, 16, 18, 20, 24, 26, 27, 30, 32, 36, 39, 40, 45, 48, 52, 54, 60, 61, 65, 72, 78, 80, 81, 90, 96, 104, 108, 117, 120, 122, 130, 135, 144, 156, 160, 162, 180, 183, 195, 208, 216, 234, 240, 243, 244, 260, 270, 288, 305, 312, 324, 351, 360, 366, 390, 405, 416, 432, 468, 480, 486, 488, 520, 540, 549, 585, 610, 624, 648, 702, 720, 732, 780, 793, 810, 864, 915, 936, 972, 976, 1040, 1053, 1080, 1098, 1170, 1215, 1220, 1248, 1296, 1404, 1440, 1464, 1560, 1586, 1620, 1647, 1755, 1830, 1872, 1944, 1952, 2080, 2106, 2160, 2196, 2340, 2379, 2430, 2440, 2592, 2745, 2808, 2928, 3120, 3159, 3172, 3240, 3294, 3510, 3660, 3744, 3888, 3965, 4212, 4320, 4392, 4680, 4758, 4860, 4880, 4941, 5265, 5490, 5616, 5856, 6240, 6318, 6344, 6480, 6588, 7020, 7137, 7320, 7776, 7930, 8235, 8424, 8784, 9360, 9516, 9720, 9760, 9882, 10530, 10980, 11232, 11895, 12636, 12688, 12960, 13176, 14040, 14274, 14640, 14823, 15795, 15860, 16470, 16848, 17568, 18720, 19032, 19440, 19764, 21060, 21411, 21960, 23790, 24705, 25272, 25376, 26352, 28080, 28548, 29280, 29646, 31590, 31720, 32940, 33696, 35685, 38064, 38880, 39528, 42120, 42822, 43920, 47580, 49410, 50544, 52704, 56160, 57096, 59292, 63180, 63440, 64233, 65880, 71370, 74115, 76128, 79056, 84240, 85644, 87840, 95160, 98820, 101088, 107055, 114192, 118584, 126360, 126880, 128466, 131760, 142740, 148230, 158112, 168480, 171288, 190320, 192699, 197640, 214110, 228384, 237168, 252720, 256932, 263520, 285480, 296460, 321165, 342576, 380640, 385398, 395280, 428220, 474336, 505440, 513864, 570960, 592920, 642330, 685152, 770796, 790560, 856440, 963495, 1027728, 1141920, 1185840, 1284660, 1541592, 1712880, 1926990, 2055456, 2371680, 2569320, 3083184, 3425760, 3853980, 5138640, 6166368, 7707960, 10277280, 15415920, 30831840]

約数ペア:

[(1, 30831840), (2, 15415920), (3, 10277280), (4, 7707960), (5, 6166368), (6, 5138640), (8, 3853980), (9, 3425760), (10, 3083184), (12, 2569320), (13, 2371680), (15, 2055456), (16, 1926990), (18, 1712880), (20, 1541592), (24, 1284660), (26, 1185840), (27, 1141920), (30, 1027728), (32, 963495), (36, 856440), (39, 790560), (40, 770796), (45, 685152), (48, 642330), (52, 592920), (54, 570960), (60, 513864), (61, 505440), (65, 474336), (72, 428220), (78, 395280), (80, 385398), (81, 380640), (90, 342576), (96, 321165), (104, 296460), (108, 285480), (117, 263520), (120, 256932), (122, 252720), (130, 237168), (135, 228384), (144, 214110), (156, 197640), (160, 192699), (162, 190320), (180, 171288), (183, 168480), (195, 158112), (208, 148230), (216, 142740), (234, 131760), (240, 128466), (243, 126880), (244, 126360), (260, 118584), (270, 114192), (288, 107055), (305, 101088), (312, 98820), (324, 95160), (351, 87840), (360, 85644), (366, 84240), (390, 79056), (405, 76128), (416, 74115), (432, 71370), (468, 65880), (480, 64233), (486, 63440), (488, 63180), (520, 59292), (540, 57096), (549, 56160), (585, 52704), (610, 50544), (624, 49410), (648, 47580), (702, 43920), (720, 42822), (732, 42120), (780, 39528), (793, 38880), (810, 38064), (864, 35685), (915, 33696), (936, 32940), (972, 31720), (976, 31590), (1040, 29646), (1053, 29280), (1080, 28548), (1098, 28080), (1170, 26352), (1215, 25376), (1220, 25272), (1248, 24705), (1296, 23790), (1404, 21960), (1440, 21411), (1464, 21060), (1560, 19764), (1586, 19440), (1620, 19032), (1647, 18720), (1755, 17568), (1830, 16848), (1872, 16470), (1944, 15860), (1952, 15795), (2080, 14823), (2106, 14640), (2160, 14274), (2196, 14040), (2340, 13176), (2379, 12960), (2430, 12688), (2440, 12636), (2592, 11895), (2745, 11232), (2808, 10980), (2928, 10530), (3120, 9882), (3159, 9760), (3172, 9720), (3240, 9516), (3294, 9360), (3510, 8784), (3660, 8424), (3744, 8235), (3888, 7930), (3965, 7776), (4212, 7320), (4320, 7137), (4392, 7020), (4680, 6588), (4758, 6480), (4860, 6344), (4880, 6318), (4941, 6240), (5265, 5856), (5490, 5616)]