28441560

素因数分解:

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

素因数の和:726

約数の個数: 128

約数和(自身を含む): 99648000

約数和(自身を除く): 71206440

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 10, 12, 14, 15, 20, 21, 24, 28, 30, 35, 40, 42, 49, 56, 60, 70, 84, 98, 105, 120, 140, 147, 168, 196, 210, 245, 280, 294, 343, 392, 420, 490, 588, 686, 691, 735, 840, 980, 1029, 1176, 1372, 1382, 1470, 1715, 1960, 2058, 2073, 2744, 2764, 2940, 3430, 3455, 4116, 4146, 4837, 5145, 5528, 5880, 6860, 6910, 8232, 8292, 9674, 10290, 10365, 13720, 13820, 14511, 16584, 19348, 20580, 20730, 24185, 27640, 29022, 33859, 38696, 41160, 41460, 48370, 58044, 67718, 72555, 82920, 96740, 101577, 116088, 135436, 145110, 169295, 193480, 203154, 237013, 270872, 290220, 338590, 406308, 474026, 507885, 580440, 677180, 711039, 812616, 948052, 1015770, 1185065, 1354360, 1422078, 1896104, 2031540, 2370130, 2844156, 3555195, 4063080, 4740260, 5688312, 7110390, 9480520, 14220780, 28441560]

約数ペア:

[(1, 28441560), (2, 14220780), (3, 9480520), (4, 7110390), (5, 5688312), (6, 4740260), (7, 4063080), (8, 3555195), (10, 2844156), (12, 2370130), (14, 2031540), (15, 1896104), (20, 1422078), (21, 1354360), (24, 1185065), (28, 1015770), (30, 948052), (35, 812616), (40, 711039), (42, 677180), (49, 580440), (56, 507885), (60, 474026), (70, 406308), (84, 338590), (98, 290220), (105, 270872), (120, 237013), (140, 203154), (147, 193480), (168, 169295), (196, 145110), (210, 135436), (245, 116088), (280, 101577), (294, 96740), (343, 82920), (392, 72555), (420, 67718), (490, 58044), (588, 48370), (686, 41460), (691, 41160), (735, 38696), (840, 33859), (980, 29022), (1029, 27640), (1176, 24185), (1372, 20730), (1382, 20580), (1470, 19348), (1715, 16584), (1960, 14511), (2058, 13820), (2073, 13720), (2744, 10365), (2764, 10290), (2940, 9674), (3430, 8292), (3455, 8232), (4116, 6910), (4146, 6860), (4837, 5880), (5145, 5528)]