81428880

素因数分解:

$2^4\times 3^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{26099}}^1$

素因数の和:26128

約数の個数: 80

約数和(自身を含む): 271857600

約数和(自身を除く): 190428720

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 13, 15, 16, 20, 24, 26, 30, 39, 40, 48, 52, 60, 65, 78, 80, 104, 120, 130, 156, 195, 208, 240, 260, 312, 390, 520, 624, 780, 1040, 1560, 3120, 26099, 52198, 78297, 104396, 130495, 156594, 208792, 260990, 313188, 339287, 391485, 417584, 521980, 626376, 678574, 782970, 1017861, 1043960, 1252752, 1357148, 1565940, 1696435, 2035722, 2087920, 2714296, 3131880, 3392870, 4071444, 5089305, 5428592, 6263760, 6785740, 8142888, 10178610, 13571480, 16285776, 20357220, 27142960, 40714440, 81428880]

約数ペア:

[(1, 81428880), (2, 40714440), (3, 27142960), (4, 20357220), (5, 16285776), (6, 13571480), (8, 10178610), (10, 8142888), (12, 6785740), (13, 6263760), (15, 5428592), (16, 5089305), (20, 4071444), (24, 3392870), (26, 3131880), (30, 2714296), (39, 2087920), (40, 2035722), (48, 1696435), (52, 1565940), (60, 1357148), (65, 1252752), (78, 1043960), (80, 1017861), (104, 782970), (120, 678574), (130, 626376), (156, 521980), (195, 417584), (208, 391485), (240, 339287), (260, 313188), (312, 260990), (390, 208792), (520, 156594), (624, 130495), (780, 104396), (1040, 78297), (1560, 52198), (3120, 26099)]