291217420

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^2\times {\mathrm{29}}^1\times {\mathrm{2971}}^1$

素因数の和:3035

約数の個数: 72

約数和(自身を含む): 685283760

約数和(自身を除く): 394066340

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 29, 52, 58, 65, 116, 130, 145, 169, 260, 290, 338, 377, 580, 676, 754, 845, 1508, 1690, 1885, 2971, 3380, 3770, 4901, 5942, 7540, 9802, 11884, 14855, 19604, 24505, 29710, 38623, 49010, 59420, 77246, 86159, 98020, 154492, 172318, 193115, 344636, 386230, 430795, 502099, 772460, 861590, 1004198, 1120067, 1723180, 2008396, 2240134, 2510495, 4480268, 5020990, 5600335, 10041980, 11200670, 14560871, 22401340, 29121742, 58243484, 72804355, 145608710, 291217420]

約数ペア:

[(1, 291217420), (2, 145608710), (4, 72804355), (5, 58243484), (10, 29121742), (13, 22401340), (20, 14560871), (26, 11200670), (29, 10041980), (52, 5600335), (58, 5020990), (65, 4480268), (116, 2510495), (130, 2240134), (145, 2008396), (169, 1723180), (260, 1120067), (290, 1004198), (338, 861590), (377, 772460), (580, 502099), (676, 430795), (754, 386230), (845, 344636), (1508, 193115), (1690, 172318), (1885, 154492), (2971, 98020), (3380, 86159), (3770, 77246), (4901, 59420), (5942, 49010), (7540, 38623), (9802, 29710), (11884, 24505), (14855, 19604)]