245420760

素因数分解:

$2^3\times 3^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{157321}}^1$

素因数の和:157348

約数の個数: 64

約数和(自身を含む): 792902880

約数和(自身を除く): 547482120

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, 157321, 314642, 471963, 629284, 786605, 943926, 1258568, 1573210, 1887852, 2045173, 2359815, 3146420, 3775704, 4090346, 4719630, 6135519, 6292840, 8180692, 9439260, 10225865, 12271038, 16361384, 18878520, 20451730, 24542076, 30677595, 40903460, 49084152, 61355190, 81806920, 122710380, 245420760]

約数ペア:

[(1, 245420760), (2, 122710380), (3, 81806920), (4, 61355190), (5, 49084152), (6, 40903460), (8, 30677595), (10, 24542076), (12, 20451730), (13, 18878520), (15, 16361384), (20, 12271038), (24, 10225865), (26, 9439260), (30, 8180692), (39, 6292840), (40, 6135519), (52, 4719630), (60, 4090346), (65, 3775704), (78, 3146420), (104, 2359815), (120, 2045173), (130, 1887852), (156, 1573210), (195, 1258568), (260, 943926), (312, 786605), (390, 629284), (520, 471963), (780, 314642), (1560, 157321)]