256977840

素因数分解:

$2^4\times 3^1\times 5^1\times 7^1\times {\mathrm{151}}^1\times {\mathrm{1013}}^1$

素因数の和:1187

約数の個数: 160

約数和(自身を含む): 917369856

約数和(自身を除く): 660392016

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, 151, 168, 210, 240, 280, 302, 336, 420, 453, 560, 604, 755, 840, 906, 1013, 1057, 1208, 1510, 1680, 1812, 2026, 2114, 2265, 2416, 3020, 3039, 3171, 3624, 4052, 4228, 4530, 5065, 5285, 6040, 6078, 6342, 7091, 7248, 8104, 8456, 9060, 10130, 10570, 12080, 12156, 12684, 14182, 15195, 15855, 16208, 16912, 18120, 20260, 21140, 21273, 24312, 25368, 28364, 30390, 31710, 35455, 36240, 40520, 42280, 42546, 48624, 50736, 56728, 60780, 63420, 70910, 81040, 84560, 85092, 106365, 113456, 121560, 126840, 141820, 152963, 170184, 212730, 243120, 253680, 283640, 305926, 340368, 425460, 458889, 567280, 611852, 764815, 850920, 917778, 1070741, 1223704, 1529630, 1701840, 1835556, 2141482, 2294445, 2447408, 3059260, 3212223, 3671112, 4282964, 4588890, 5353705, 6118520, 6424446, 7342224, 8565928, 9177780, 10707410, 12237040, 12848892, 16061115, 17131856, 18355560, 21414820, 25697784, 32122230, 36711120, 42829640, 51395568, 64244460, 85659280, 128488920, 256977840]

約数ペア:

[(1, 256977840), (2, 128488920), (3, 85659280), (4, 64244460), (5, 51395568), (6, 42829640), (7, 36711120), (8, 32122230), (10, 25697784), (12, 21414820), (14, 18355560), (15, 17131856), (16, 16061115), (20, 12848892), (21, 12237040), (24, 10707410), (28, 9177780), (30, 8565928), (35, 7342224), (40, 6424446), (42, 6118520), (48, 5353705), (56, 4588890), (60, 4282964), (70, 3671112), (80, 3212223), (84, 3059260), (105, 2447408), (112, 2294445), (120, 2141482), (140, 1835556), (151, 1701840), (168, 1529630), (210, 1223704), (240, 1070741), (280, 917778), (302, 850920), (336, 764815), (420, 611852), (453, 567280), (560, 458889), (604, 425460), (755, 340368), (840, 305926), (906, 283640), (1013, 253680), (1057, 243120), (1208, 212730), (1510, 170184), (1680, 152963), (1812, 141820), (2026, 126840), (2114, 121560), (2265, 113456), (2416, 106365), (3020, 85092), (3039, 84560), (3171, 81040), (3624, 70910), (4052, 63420), (4228, 60780), (4530, 56728), (5065, 50736), (5285, 48624), (6040, 42546), (6078, 42280), (6342, 40520), (7091, 36240), (7248, 35455), (8104, 31710), (8456, 30390), (9060, 28364), (10130, 25368), (10570, 24312), (12080, 21273), (12156, 21140), (12684, 20260), (14182, 18120), (15195, 16912), (15855, 16208)]