20155928

素因数分解:

$2^3\times {\mathrm{13}}^1\times {\mathrm{29}}^1\times {\mathrm{41}}^1\times {\mathrm{163}}^1$

素因数の和:252

約数の個数: 64

約数和(自身を含む): 43394400

約数和(自身を除く): 23238472

約数列:

[1, 2, 4, 8, 13, 26, 29, 41, 52, 58, 82, 104, 116, 163, 164, 232, 326, 328, 377, 533, 652, 754, 1066, 1189, 1304, 1508, 2119, 2132, 2378, 3016, 4238, 4264, 4727, 4756, 6683, 8476, 9454, 9512, 13366, 15457, 16952, 18908, 26732, 30914, 37816, 53464, 61451, 61828, 86879, 122902, 123656, 173758, 193807, 245804, 347516, 387614, 491608, 695032, 775228, 1550456, 2519491, 5038982, 10077964, 20155928]

約数ペア:

[(1, 20155928), (2, 10077964), (4, 5038982), (8, 2519491), (13, 1550456), (26, 775228), (29, 695032), (41, 491608), (52, 387614), (58, 347516), (82, 245804), (104, 193807), (116, 173758), (163, 123656), (164, 122902), (232, 86879), (326, 61828), (328, 61451), (377, 53464), (533, 37816), (652, 30914), (754, 26732), (1066, 18908), (1189, 16952), (1304, 15457), (1508, 13366), (2119, 9512), (2132, 9454), (2378, 8476), (3016, 6683), (4238, 4756), (4264, 4727)]