78919920

素因数分解:

$2^4\times 3^4\times 5^1\times {\mathrm{19}}^1\times {\mathrm{641}}^1$

素因数の和:685

約数の個数: 200

約数和(自身を含む): 288977040

約数和(自身を除く): 210057120

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 16, 18, 19, 20, 24, 27, 30, 36, 38, 40, 45, 48, 54, 57, 60, 72, 76, 80, 81, 90, 95, 108, 114, 120, 135, 144, 152, 162, 171, 180, 190, 216, 228, 240, 270, 285, 304, 324, 342, 360, 380, 405, 432, 456, 513, 540, 570, 641, 648, 684, 720, 760, 810, 855, 912, 1026, 1080, 1140, 1282, 1296, 1368, 1520, 1539, 1620, 1710, 1923, 2052, 2160, 2280, 2564, 2565, 2736, 3078, 3205, 3240, 3420, 3846, 4104, 4560, 5128, 5130, 5769, 6156, 6410, 6480, 6840, 7692, 7695, 8208, 9615, 10256, 10260, 11538, 12179, 12312, 12820, 13680, 15384, 15390, 17307, 19230, 20520, 23076, 24358, 24624, 25640, 28845, 30768, 30780, 34614, 36537, 38460, 41040, 46152, 48716, 51280, 51921, 57690, 60895, 61560, 69228, 73074, 76920, 86535, 92304, 97432, 103842, 109611, 115380, 121790, 123120, 138456, 146148, 153840, 173070, 182685, 194864, 207684, 219222, 230760, 243580, 259605, 276912, 292296, 328833, 346140, 365370, 415368, 438444, 461520, 487160, 519210, 548055, 584592, 657666, 692280, 730740, 830736, 876888, 974320, 986499, 1038420, 1096110, 1315332, 1384560, 1461480, 1644165, 1753776, 1972998, 2076840, 2192220, 2630664, 2922960, 3288330, 3945996, 4153680, 4384440, 4932495, 5261328, 6576660, 7891992, 8768880, 9864990, 13153320, 15783984, 19729980, 26306640, 39459960, 78919920]

約数ペア:

[(1, 78919920), (2, 39459960), (3, 26306640), (4, 19729980), (5, 15783984), (6, 13153320), (8, 9864990), (9, 8768880), (10, 7891992), (12, 6576660), (15, 5261328), (16, 4932495), (18, 4384440), (19, 4153680), (20, 3945996), (24, 3288330), (27, 2922960), (30, 2630664), (36, 2192220), (38, 2076840), (40, 1972998), (45, 1753776), (48, 1644165), (54, 1461480), (57, 1384560), (60, 1315332), (72, 1096110), (76, 1038420), (80, 986499), (81, 974320), (90, 876888), (95, 830736), (108, 730740), (114, 692280), (120, 657666), (135, 584592), (144, 548055), (152, 519210), (162, 487160), (171, 461520), (180, 438444), (190, 415368), (216, 365370), (228, 346140), (240, 328833), (270, 292296), (285, 276912), (304, 259605), (324, 243580), (342, 230760), (360, 219222), (380, 207684), (405, 194864), (432, 182685), (456, 173070), (513, 153840), (540, 146148), (570, 138456), (641, 123120), (648, 121790), (684, 115380), (720, 109611), (760, 103842), (810, 97432), (855, 92304), (912, 86535), (1026, 76920), (1080, 73074), (1140, 69228), (1282, 61560), (1296, 60895), (1368, 57690), (1520, 51921), (1539, 51280), (1620, 48716), (1710, 46152), (1923, 41040), (2052, 38460), (2160, 36537), (2280, 34614), (2564, 30780), (2565, 30768), (2736, 28845), (3078, 25640), (3205, 24624), (3240, 24358), (3420, 23076), (3846, 20520), (4104, 19230), (4560, 17307), (5128, 15390), (5130, 15384), (5769, 13680), (6156, 12820), (6410, 12312), (6480, 12179), (6840, 11538), (7692, 10260), (7695, 10256), (8208, 9615)]