256942920

素因数分解:

$2^3\times 3^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{164707}}^1$

素因数の和:164734

約数の個数: 64

約数和(自身を含む): 830128320

約数和(自身を除く): 573185400

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 13, 15, 20, 24, 26, 30, 39, 40, 52, 60, 65, 78, 104, 120, 130, 156, 195, 260, 312, 390, 520, 780, 1560, 164707, 329414, 494121, 658828, 823535, 988242, 1317656, 1647070, 1976484, 2141191, 2470605, 3294140, 3952968, 4282382, 4941210, 6423573, 6588280, 8564764, 9882420, 10705955, 12847146, 17129528, 19764840, 21411910, 25694292, 32117865, 42823820, 51388584, 64235730, 85647640, 128471460, 256942920]

約数ペア:

[(1, 256942920), (2, 128471460), (3, 85647640), (4, 64235730), (5, 51388584), (6, 42823820), (8, 32117865), (10, 25694292), (12, 21411910), (13, 19764840), (15, 17129528), (20, 12847146), (24, 10705955), (26, 9882420), (30, 8564764), (39, 6588280), (40, 6423573), (52, 4941210), (60, 4282382), (65, 3952968), (78, 3294140), (104, 2470605), (120, 2141191), (130, 1976484), (156, 1647070), (195, 1317656), (260, 988242), (312, 823535), (390, 658828), (520, 494121), (780, 329414), (1560, 164707)]