1280668210

素因数分解:

$2^1\times 5^1\times {\mathrm{19}}^1\times {\mathrm{41}}^1\times {\mathrm{79}}^1\times {\mathrm{2081}}^1$

素因数の和:2227

約数の個数: 64

約数和(自身を含む): 2518387200

約数和(自身を除く): 1237718990

約数列:

[1, 2, 5, 10, 19, 38, 41, 79, 82, 95, 158, 190, 205, 395, 410, 779, 790, 1501, 1558, 2081, 3002, 3239, 3895, 4162, 6478, 7505, 7790, 10405, 15010, 16195, 20810, 32390, 39539, 61541, 79078, 85321, 123082, 164399, 170642, 197695, 307705, 328798, 395390, 426605, 615410, 821995, 853210, 1621099, 1643990, 3123581, 3242198, 6247162, 6740359, 8105495, 13480718, 15617905, 16210990, 31235810, 33701795, 67403590, 128066821, 256133642, 640334105, 1280668210]

約数ペア:

[(1, 1280668210), (2, 640334105), (5, 256133642), (10, 128066821), (19, 67403590), (38, 33701795), (41, 31235810), (79, 16210990), (82, 15617905), (95, 13480718), (158, 8105495), (190, 6740359), (205, 6247162), (395, 3242198), (410, 3123581), (779, 1643990), (790, 1621099), (1501, 853210), (1558, 821995), (2081, 615410), (3002, 426605), (3239, 395390), (3895, 328798), (4162, 307705), (6478, 197695), (7505, 170642), (7790, 164399), (10405, 123082), (15010, 85321), (16195, 79078), (20810, 61541), (32390, 39539)]