20949136

素因数分解:

$2^4\times {\mathrm{13}}^1\times {\mathrm{23}}^1\times {\mathrm{29}}^1\times {\mathrm{151}}^1$

素因数の和:224

約数の個数: 80

約数和(自身を含む): 47496960

約数和(自身を除く): 26547824

約数列:

[1, 2, 4, 8, 13, 16, 23, 26, 29, 46, 52, 58, 92, 104, 116, 151, 184, 208, 232, 299, 302, 368, 377, 464, 598, 604, 667, 754, 1196, 1208, 1334, 1508, 1963, 2392, 2416, 2668, 3016, 3473, 3926, 4379, 4784, 5336, 6032, 6946, 7852, 8671, 8758, 10672, 13892, 15704, 17342, 17516, 27784, 31408, 34684, 35032, 45149, 55568, 56927, 69368, 70064, 90298, 100717, 113854, 138736, 180596, 201434, 227708, 361192, 402868, 455416, 722384, 805736, 910832, 1309321, 1611472, 2618642, 5237284, 10474568, 20949136]

約数ペア:

[(1, 20949136), (2, 10474568), (4, 5237284), (8, 2618642), (13, 1611472), (16, 1309321), (23, 910832), (26, 805736), (29, 722384), (46, 455416), (52, 402868), (58, 361192), (92, 227708), (104, 201434), (116, 180596), (151, 138736), (184, 113854), (208, 100717), (232, 90298), (299, 70064), (302, 69368), (368, 56927), (377, 55568), (464, 45149), (598, 35032), (604, 34684), (667, 31408), (754, 27784), (1196, 17516), (1208, 17342), (1334, 15704), (1508, 13892), (1963, 10672), (2392, 8758), (2416, 8671), (2668, 7852), (3016, 6946), (3473, 6032), (3926, 5336), (4379, 4784)]