256477560

素因数分解:

$2^3\times 3^1\times 5^1\times {\mathrm{71}}^1\times {\mathrm{30103}}^1$

素因数の和:30188

約数の個数: 64

約数和(自身を含む): 780295680

約数和(自身を除く): 523818120

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 20, 24, 30, 40, 60, 71, 120, 142, 213, 284, 355, 426, 568, 710, 852, 1065, 1420, 1704, 2130, 2840, 4260, 8520, 30103, 60206, 90309, 120412, 150515, 180618, 240824, 301030, 361236, 451545, 602060, 722472, 903090, 1204120, 1806180, 2137313, 3612360, 4274626, 6411939, 8549252, 10686565, 12823878, 17098504, 21373130, 25647756, 32059695, 42746260, 51295512, 64119390, 85492520, 128238780, 256477560]

約数ペア:

[(1, 256477560), (2, 128238780), (3, 85492520), (4, 64119390), (5, 51295512), (6, 42746260), (8, 32059695), (10, 25647756), (12, 21373130), (15, 17098504), (20, 12823878), (24, 10686565), (30, 8549252), (40, 6411939), (60, 4274626), (71, 3612360), (120, 2137313), (142, 1806180), (213, 1204120), (284, 903090), (355, 722472), (426, 602060), (568, 451545), (710, 361236), (852, 301030), (1065, 240824), (1420, 180618), (1704, 150515), (2130, 120412), (2840, 90309), (4260, 60206), (8520, 30103)]