51287080

素因数分解:

$2^3\times 5^1\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{29}}^1\times {\mathrm{179}}^1$

素因数の和:251

約数の個数: 128

約数和(自身を含む): 136080000

約数和(自身を除く): 84792920

約数列:

[1, 2, 4, 5, 8, 10, 13, 19, 20, 26, 29, 38, 40, 52, 58, 65, 76, 95, 104, 116, 130, 145, 152, 179, 190, 232, 247, 260, 290, 358, 377, 380, 494, 520, 551, 580, 716, 754, 760, 895, 988, 1102, 1160, 1235, 1432, 1508, 1790, 1885, 1976, 2204, 2327, 2470, 2755, 3016, 3401, 3580, 3770, 4408, 4654, 4940, 5191, 5510, 6802, 7160, 7163, 7540, 9308, 9880, 10382, 11020, 11635, 13604, 14326, 15080, 17005, 18616, 20764, 22040, 23270, 25955, 27208, 28652, 34010, 35815, 41528, 44213, 46540, 51910, 57304, 67483, 68020, 71630, 88426, 93080, 98629, 103820, 134966, 136040, 143260, 176852, 197258, 207640, 221065, 269932, 286520, 337415, 353704, 394516, 442130, 493145, 539864, 674830, 789032, 884260, 986290, 1282177, 1349660, 1768520, 1972580, 2564354, 2699320, 3945160, 5128708, 6410885, 10257416, 12821770, 25643540, 51287080]

約数ペア:

[(1, 51287080), (2, 25643540), (4, 12821770), (5, 10257416), (8, 6410885), (10, 5128708), (13, 3945160), (19, 2699320), (20, 2564354), (26, 1972580), (29, 1768520), (38, 1349660), (40, 1282177), (52, 986290), (58, 884260), (65, 789032), (76, 674830), (95, 539864), (104, 493145), (116, 442130), (130, 394516), (145, 353704), (152, 337415), (179, 286520), (190, 269932), (232, 221065), (247, 207640), (260, 197258), (290, 176852), (358, 143260), (377, 136040), (380, 134966), (494, 103820), (520, 98629), (551, 93080), (580, 88426), (716, 71630), (754, 68020), (760, 67483), (895, 57304), (988, 51910), (1102, 46540), (1160, 44213), (1235, 41528), (1432, 35815), (1508, 34010), (1790, 28652), (1885, 27208), (1976, 25955), (2204, 23270), (2327, 22040), (2470, 20764), (2755, 18616), (3016, 17005), (3401, 15080), (3580, 14326), (3770, 13604), (4408, 11635), (4654, 11020), (4940, 10382), (5191, 9880), (5510, 9308), (6802, 7540), (7160, 7163)]