87765720

素因数分解:

$2^3\times 3^1\times 5^1\times 7^1\times {\mathrm{163}}^1\times {\mathrm{641}}^1$

素因数の和:825

約数の個数: 128

約数和(自身を含む): 303229440

約数和(自身を除く): 215463720

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 10, 12, 14, 15, 20, 21, 24, 28, 30, 35, 40, 42, 56, 60, 70, 84, 105, 120, 140, 163, 168, 210, 280, 326, 420, 489, 641, 652, 815, 840, 978, 1141, 1282, 1304, 1630, 1923, 1956, 2282, 2445, 2564, 3205, 3260, 3423, 3846, 3912, 4487, 4564, 4890, 5128, 5705, 6410, 6520, 6846, 7692, 8974, 9128, 9615, 9780, 11410, 12820, 13461, 13692, 15384, 17115, 17948, 19230, 19560, 22435, 22820, 25640, 26922, 27384, 34230, 35896, 38460, 44870, 45640, 53844, 67305, 68460, 76920, 89740, 104483, 107688, 134610, 136920, 179480, 208966, 269220, 313449, 417932, 522415, 538440, 626898, 731381, 835864, 1044830, 1253796, 1462762, 1567245, 2089660, 2194143, 2507592, 2925524, 3134490, 3656905, 4179320, 4388286, 5851048, 6268980, 7313810, 8776572, 10970715, 12537960, 14627620, 17553144, 21941430, 29255240, 43882860, 87765720]

約数ペア:

[(1, 87765720), (2, 43882860), (3, 29255240), (4, 21941430), (5, 17553144), (6, 14627620), (7, 12537960), (8, 10970715), (10, 8776572), (12, 7313810), (14, 6268980), (15, 5851048), (20, 4388286), (21, 4179320), (24, 3656905), (28, 3134490), (30, 2925524), (35, 2507592), (40, 2194143), (42, 2089660), (56, 1567245), (60, 1462762), (70, 1253796), (84, 1044830), (105, 835864), (120, 731381), (140, 626898), (163, 538440), (168, 522415), (210, 417932), (280, 313449), (326, 269220), (420, 208966), (489, 179480), (641, 136920), (652, 134610), (815, 107688), (840, 104483), (978, 89740), (1141, 76920), (1282, 68460), (1304, 67305), (1630, 53844), (1923, 45640), (1956, 44870), (2282, 38460), (2445, 35896), (2564, 34230), (3205, 27384), (3260, 26922), (3423, 25640), (3846, 22820), (3912, 22435), (4487, 19560), (4564, 19230), (4890, 17948), (5128, 17115), (5705, 15384), (6410, 13692), (6520, 13461), (6846, 12820), (7692, 11410), (8974, 9780), (9128, 9615)]