28118480

素因数分解:

$2^4\times 5^1\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{1423}}^1$

素因数の和:1468

約数の個数: 80

約数和(自身を含む): 74161920

約数和(自身を除く): 46043440

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 19, 20, 26, 38, 40, 52, 65, 76, 80, 95, 104, 130, 152, 190, 208, 247, 260, 304, 380, 494, 520, 760, 988, 1040, 1235, 1423, 1520, 1976, 2470, 2846, 3952, 4940, 5692, 7115, 9880, 11384, 14230, 18499, 19760, 22768, 27037, 28460, 36998, 54074, 56920, 73996, 92495, 108148, 113840, 135185, 147992, 184990, 216296, 270370, 295984, 351481, 369980, 432592, 540740, 702962, 739960, 1081480, 1405924, 1479920, 1757405, 2162960, 2811848, 3514810, 5623696, 7029620, 14059240, 28118480]

約数ペア:

[(1, 28118480), (2, 14059240), (4, 7029620), (5, 5623696), (8, 3514810), (10, 2811848), (13, 2162960), (16, 1757405), (19, 1479920), (20, 1405924), (26, 1081480), (38, 739960), (40, 702962), (52, 540740), (65, 432592), (76, 369980), (80, 351481), (95, 295984), (104, 270370), (130, 216296), (152, 184990), (190, 147992), (208, 135185), (247, 113840), (260, 108148), (304, 92495), (380, 73996), (494, 56920), (520, 54074), (760, 36998), (988, 28460), (1040, 27037), (1235, 22768), (1423, 19760), (1520, 18499), (1976, 14230), (2470, 11384), (2846, 9880), (3952, 7115), (4940, 5692)]