20514832

素因数分解:

$2^4\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{29}}^1\times {\mathrm{179}}^1$

素因数の和:248

約数の個数: 80

約数和(自身を含む): 46872000

約数和(自身を除く): 26357168

約数列:

[1, 2, 4, 8, 13, 16, 19, 26, 29, 38, 52, 58, 76, 104, 116, 152, 179, 208, 232, 247, 304, 358, 377, 464, 494, 551, 716, 754, 988, 1102, 1432, 1508, 1976, 2204, 2327, 2864, 3016, 3401, 3952, 4408, 4654, 5191, 6032, 6802, 7163, 8816, 9308, 10382, 13604, 14326, 18616, 20764, 27208, 28652, 37232, 41528, 44213, 54416, 57304, 67483, 83056, 88426, 98629, 114608, 134966, 176852, 197258, 269932, 353704, 394516, 539864, 707408, 789032, 1079728, 1282177, 1578064, 2564354, 5128708, 10257416, 20514832]

約数ペア:

[(1, 20514832), (2, 10257416), (4, 5128708), (8, 2564354), (13, 1578064), (16, 1282177), (19, 1079728), (26, 789032), (29, 707408), (38, 539864), (52, 394516), (58, 353704), (76, 269932), (104, 197258), (116, 176852), (152, 134966), (179, 114608), (208, 98629), (232, 88426), (247, 83056), (304, 67483), (358, 57304), (377, 54416), (464, 44213), (494, 41528), (551, 37232), (716, 28652), (754, 27208), (988, 20764), (1102, 18616), (1432, 14326), (1508, 13604), (1976, 10382), (2204, 9308), (2327, 8816), (2864, 7163), (3016, 6802), (3401, 6032), (3952, 5191), (4408, 4654)]