1279883440

素因数分解:

$2^4\times 5^1\times {\mathrm{11}}^1\times {\mathrm{659}}^1\times {\mathrm{2207}}^1$

素因数の和:2890

約数の個数: 80

約数和(自身を含む): 3252648960

約数和(自身を除く): 1972765520

約数列:

[1, 2, 4, 5, 8, 10, 11, 16, 20, 22, 40, 44, 55, 80, 88, 110, 176, 220, 440, 659, 880, 1318, 2207, 2636, 3295, 4414, 5272, 6590, 7249, 8828, 10544, 11035, 13180, 14498, 17656, 22070, 24277, 26360, 28996, 35312, 36245, 44140, 48554, 52720, 57992, 72490, 88280, 97108, 115984, 121385, 144980, 176560, 194216, 242770, 289960, 388432, 485540, 579920, 971080, 1454413, 1942160, 2908826, 5817652, 7272065, 11635304, 14544130, 15998543, 23270608, 29088260, 31997086, 58176520, 63994172, 79992715, 116353040, 127988344, 159985430, 255976688, 319970860, 639941720, 1279883440]

約数ペア:

[(1, 1279883440), (2, 639941720), (4, 319970860), (5, 255976688), (8, 159985430), (10, 127988344), (11, 116353040), (16, 79992715), (20, 63994172), (22, 58176520), (40, 31997086), (44, 29088260), (55, 23270608), (80, 15998543), (88, 14544130), (110, 11635304), (176, 7272065), (220, 5817652), (440, 2908826), (659, 1942160), (880, 1454413), (1318, 971080), (2207, 579920), (2636, 485540), (3295, 388432), (4414, 289960), (5272, 242770), (6590, 194216), (7249, 176560), (8828, 144980), (10544, 121385), (11035, 115984), (13180, 97108), (14498, 88280), (17656, 72490), (22070, 57992), (24277, 52720), (26360, 48554), (28996, 44140), (35312, 36245)]