1323920

素因数分解:

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

素因数の和:112

約数の個数: 80

約数和(自身を含む): 3541440

約数和(自身を除く): 2217520

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, 380, 494, 520, 536, 670, 760, 871, 988, 1040, 1072, 1235, 1273, 1340, 1520, 1742, 1976, 2470, 2546, 2680, 3484, 3952, 4355, 4940, 5092, 5360, 6365, 6968, 8710, 9880, 10184, 12730, 13936, 16549, 17420, 19760, 20368, 25460, 33098, 34840, 50920, 66196, 69680, 82745, 101840, 132392, 165490, 264784, 330980, 661960, 1323920]

約数ペア:

[(1, 1323920), (2, 661960), (4, 330980), (5, 264784), (8, 165490), (10, 132392), (13, 101840), (16, 82745), (19, 69680), (20, 66196), (26, 50920), (38, 34840), (40, 33098), (52, 25460), (65, 20368), (67, 19760), (76, 17420), (80, 16549), (95, 13936), (104, 12730), (130, 10184), (134, 9880), (152, 8710), (190, 6968), (208, 6365), (247, 5360), (260, 5092), (268, 4940), (304, 4355), (335, 3952), (380, 3484), (494, 2680), (520, 2546), (536, 2470), (670, 1976), (760, 1742), (871, 1520), (988, 1340), (1040, 1273), (1072, 1235)]