25154480

素因数分解:

$2^4\times 5^1\times {\mathrm{13}}^1\times {\mathrm{19}}^2\times {\mathrm{67}}^1$

素因数の和:131

約数の個数: 120

約数和(自身を含む): 67464432

約数和(自身を除く): 42309952

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 19, 20, 26, 38, 40, 52, 65, 67, 76, 80, 95, 104, 130, 134, 152, 190, 208, 247, 260, 268, 304, 335, 361, 380, 494, 520, 536, 670, 722, 760, 871, 988, 1040, 1072, 1235, 1273, 1340, 1444, 1520, 1742, 1805, 1976, 2470, 2546, 2680, 2888, 3484, 3610, 3952, 4355, 4693, 4940, 5092, 5360, 5776, 6365, 6968, 7220, 8710, 9386, 9880, 10184, 12730, 13936, 14440, 16549, 17420, 18772, 19760, 20368, 23465, 24187, 25460, 28880, 33098, 34840, 37544, 46930, 48374, 50920, 66196, 69680, 75088, 82745, 93860, 96748, 101840, 120935, 132392, 165490, 187720, 193496, 241870, 264784, 314431, 330980, 375440, 386992, 483740, 628862, 661960, 967480, 1257724, 1323920, 1572155, 1934960, 2515448, 3144310, 5030896, 6288620, 12577240, 25154480]

約数ペア:

[(1, 25154480), (2, 12577240), (4, 6288620), (5, 5030896), (8, 3144310), (10, 2515448), (13, 1934960), (16, 1572155), (19, 1323920), (20, 1257724), (26, 967480), (38, 661960), (40, 628862), (52, 483740), (65, 386992), (67, 375440), (76, 330980), (80, 314431), (95, 264784), (104, 241870), (130, 193496), (134, 187720), (152, 165490), (190, 132392), (208, 120935), (247, 101840), (260, 96748), (268, 93860), (304, 82745), (335, 75088), (361, 69680), (380, 66196), (494, 50920), (520, 48374), (536, 46930), (670, 37544), (722, 34840), (760, 33098), (871, 28880), (988, 25460), (1040, 24187), (1072, 23465), (1235, 20368), (1273, 19760), (1340, 18772), (1444, 17420), (1520, 16549), (1742, 14440), (1805, 13936), (1976, 12730), (2470, 10184), (2546, 9880), (2680, 9386), (2888, 8710), (3484, 7220), (3610, 6968), (3952, 6365), (4355, 5776), (4693, 5360), (4940, 5092)]