31051440

素因数分解:

$2^4\times 3^2\times 5^1\times 7^1\times {\mathrm{61}}^1\times {\mathrm{101}}^1$

素因数の和:188

約数の個数: 240

約数和(自身を含む): 122331456

約数和(自身を除く): 91280016

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 12, 14, 15, 16, 18, 20, 21, 24, 28, 30, 35, 36, 40, 42, 45, 48, 56, 60, 61, 63, 70, 72, 80, 84, 90, 101, 105, 112, 120, 122, 126, 140, 144, 168, 180, 183, 202, 210, 240, 244, 252, 280, 303, 305, 315, 336, 360, 366, 404, 420, 427, 488, 504, 505, 549, 560, 606, 610, 630, 707, 720, 732, 808, 840, 854, 909, 915, 976, 1008, 1010, 1098, 1212, 1220, 1260, 1281, 1414, 1464, 1515, 1616, 1680, 1708, 1818, 1830, 2020, 2121, 2135, 2196, 2424, 2440, 2520, 2562, 2745, 2828, 2928, 3030, 3416, 3535, 3636, 3660, 3843, 4040, 4242, 4270, 4392, 4545, 4848, 4880, 5040, 5124, 5490, 5656, 6060, 6161, 6363, 6405, 6832, 7070, 7272, 7320, 7686, 8080, 8484, 8540, 8784, 9090, 10248, 10605, 10980, 11312, 12120, 12322, 12726, 12810, 14140, 14544, 14640, 15372, 16968, 17080, 18180, 18483, 19215, 20496, 21210, 21960, 24240, 24644, 25452, 25620, 28280, 30744, 30805, 31815, 33936, 34160, 36360, 36966, 38430, 42420, 43127, 43920, 49288, 50904, 51240, 55449, 56560, 61488, 61610, 63630, 72720, 73932, 76860, 84840, 86254, 92415, 98576, 101808, 102480, 110898, 123220, 127260, 129381, 147864, 153720, 169680, 172508, 184830, 215635, 221796, 246440, 254520, 258762, 277245, 295728, 307440, 345016, 369660, 388143, 431270, 443592, 492880, 509040, 517524, 554490, 646905, 690032, 739320, 776286, 862540, 887184, 1035048, 1108980, 1293810, 1478640, 1552572, 1725080, 1940715, 2070096, 2217960, 2587620, 3105144, 3450160, 3881430, 4435920, 5175240, 6210288, 7762860, 10350480, 15525720, 31051440]

約数ペア:

[(1, 31051440), (2, 15525720), (3, 10350480), (4, 7762860), (5, 6210288), (6, 5175240), (7, 4435920), (8, 3881430), (9, 3450160), (10, 3105144), (12, 2587620), (14, 2217960), (15, 2070096), (16, 1940715), (18, 1725080), (20, 1552572), (21, 1478640), (24, 1293810), (28, 1108980), (30, 1035048), (35, 887184), (36, 862540), (40, 776286), (42, 739320), (45, 690032), (48, 646905), (56, 554490), (60, 517524), (61, 509040), (63, 492880), (70, 443592), (72, 431270), (80, 388143), (84, 369660), (90, 345016), (101, 307440), (105, 295728), (112, 277245), (120, 258762), (122, 254520), (126, 246440), (140, 221796), (144, 215635), (168, 184830), (180, 172508), (183, 169680), (202, 153720), (210, 147864), (240, 129381), (244, 127260), (252, 123220), (280, 110898), (303, 102480), (305, 101808), (315, 98576), (336, 92415), (360, 86254), (366, 84840), (404, 76860), (420, 73932), (427, 72720), (488, 63630), (504, 61610), (505, 61488), (549, 56560), (560, 55449), (606, 51240), (610, 50904), (630, 49288), (707, 43920), (720, 43127), (732, 42420), (808, 38430), (840, 36966), (854, 36360), (909, 34160), (915, 33936), (976, 31815), (1008, 30805), (1010, 30744), (1098, 28280), (1212, 25620), (1220, 25452), (1260, 24644), (1281, 24240), (1414, 21960), (1464, 21210), (1515, 20496), (1616, 19215), (1680, 18483), (1708, 18180), (1818, 17080), (1830, 16968), (2020, 15372), (2121, 14640), (2135, 14544), (2196, 14140), (2424, 12810), (2440, 12726), (2520, 12322), (2562, 12120), (2745, 11312), (2828, 10980), (2928, 10605), (3030, 10248), (3416, 9090), (3535, 8784), (3636, 8540), (3660, 8484), (3843, 8080), (4040, 7686), (4242, 7320), (4270, 7272), (4392, 7070), (4545, 6832), (4848, 6405), (4880, 6363), (5040, 6161), (5124, 6060), (5490, 5656)]