123923940

素因数分解:

$2^2\times 3^1\times 5^1\times 7^2\times {\mathrm{61}}^1\times {\mathrm{691}}^1$

素因数の和:778

約数の個数: 144

約数和(自身を含む): 410848704

約数和(自身を除く): 286924764

約数列:

[1, 2, 3, 4, 5, 6, 7, 10, 12, 14, 15, 20, 21, 28, 30, 35, 42, 49, 60, 61, 70, 84, 98, 105, 122, 140, 147, 183, 196, 210, 244, 245, 294, 305, 366, 420, 427, 490, 588, 610, 691, 732, 735, 854, 915, 980, 1220, 1281, 1382, 1470, 1708, 1830, 2073, 2135, 2562, 2764, 2940, 2989, 3455, 3660, 4146, 4270, 4837, 5124, 5978, 6405, 6910, 8292, 8540, 8967, 9674, 10365, 11956, 12810, 13820, 14511, 14945, 17934, 19348, 20730, 24185, 25620, 29022, 29890, 33859, 35868, 41460, 42151, 44835, 48370, 58044, 59780, 67718, 72555, 84302, 89670, 96740, 101577, 126453, 135436, 145110, 168604, 169295, 179340, 203154, 210755, 252906, 290220, 295057, 338590, 406308, 421510, 505812, 507885, 590114, 632265, 677180, 843020, 885171, 1015770, 1180228, 1264530, 1475285, 1770342, 2031540, 2065399, 2529060, 2950570, 3540684, 4130798, 4425855, 5901140, 6196197, 8261596, 8851710, 10326995, 12392394, 17703420, 20653990, 24784788, 30980985, 41307980, 61961970, 123923940]

約数ペア:

[(1, 123923940), (2, 61961970), (3, 41307980), (4, 30980985), (5, 24784788), (6, 20653990), (7, 17703420), (10, 12392394), (12, 10326995), (14, 8851710), (15, 8261596), (20, 6196197), (21, 5901140), (28, 4425855), (30, 4130798), (35, 3540684), (42, 2950570), (49, 2529060), (60, 2065399), (61, 2031540), (70, 1770342), (84, 1475285), (98, 1264530), (105, 1180228), (122, 1015770), (140, 885171), (147, 843020), (183, 677180), (196, 632265), (210, 590114), (244, 507885), (245, 505812), (294, 421510), (305, 406308), (366, 338590), (420, 295057), (427, 290220), (490, 252906), (588, 210755), (610, 203154), (691, 179340), (732, 169295), (735, 168604), (854, 145110), (915, 135436), (980, 126453), (1220, 101577), (1281, 96740), (1382, 89670), (1470, 84302), (1708, 72555), (1830, 67718), (2073, 59780), (2135, 58044), (2562, 48370), (2764, 44835), (2940, 42151), (2989, 41460), (3455, 35868), (3660, 33859), (4146, 29890), (4270, 29022), (4837, 25620), (5124, 24185), (5978, 20730), (6405, 19348), (6910, 17934), (8292, 14945), (8540, 14511), (8967, 13820), (9674, 12810), (10365, 11956)]