256433520

素因数分解:

$2^4\times 3^1\times 5^1\times 7^1\times {\mathrm{152639}}^1$

素因数の和:152662

約数の個数: 80

約数和(自身を含む): 908513280

約数和(自身を除く): 652079760

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 10, 12, 14, 15, 16, 20, 21, 24, 28, 30, 35, 40, 42, 48, 56, 60, 70, 80, 84, 105, 112, 120, 140, 168, 210, 240, 280, 336, 420, 560, 840, 1680, 152639, 305278, 457917, 610556, 763195, 915834, 1068473, 1221112, 1526390, 1831668, 2136946, 2289585, 2442224, 3052780, 3205419, 3663336, 4273892, 4579170, 5342365, 6105560, 6410838, 7326672, 8547784, 9158340, 10684730, 12211120, 12821676, 16027095, 17095568, 18316680, 21369460, 25643352, 32054190, 36633360, 42738920, 51286704, 64108380, 85477840, 128216760, 256433520]

約数ペア:

[(1, 256433520), (2, 128216760), (3, 85477840), (4, 64108380), (5, 51286704), (6, 42738920), (7, 36633360), (8, 32054190), (10, 25643352), (12, 21369460), (14, 18316680), (15, 17095568), (16, 16027095), (20, 12821676), (21, 12211120), (24, 10684730), (28, 9158340), (30, 8547784), (35, 7326672), (40, 6410838), (42, 6105560), (48, 5342365), (56, 4579170), (60, 4273892), (70, 3663336), (80, 3205419), (84, 3052780), (105, 2442224), (112, 2289585), (120, 2136946), (140, 1831668), (168, 1526390), (210, 1221112), (240, 1068473), (280, 915834), (336, 763195), (420, 610556), (560, 457917), (840, 305278), (1680, 152639)]