131755780

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^2\times {\mathrm{17}}^1\times {\mathrm{2293}}^1$

素因数の和:2345

約数の個数: 72

約数和(自身を含む): 317370312

約数和(自身を除く): 185614532

約数列:

[1, 2, 4, 5, 10, 13, 17, 20, 26, 34, 52, 65, 68, 85, 130, 169, 170, 221, 260, 338, 340, 442, 676, 845, 884, 1105, 1690, 2210, 2293, 2873, 3380, 4420, 4586, 5746, 9172, 11465, 11492, 14365, 22930, 28730, 29809, 38981, 45860, 57460, 59618, 77962, 119236, 149045, 155924, 194905, 298090, 387517, 389810, 506753, 596180, 775034, 779620, 1013506, 1550068, 1937585, 2027012, 2533765, 3875170, 5067530, 6587789, 7750340, 10135060, 13175578, 26351156, 32938945, 65877890, 131755780]

約数ペア:

[(1, 131755780), (2, 65877890), (4, 32938945), (5, 26351156), (10, 13175578), (13, 10135060), (17, 7750340), (20, 6587789), (26, 5067530), (34, 3875170), (52, 2533765), (65, 2027012), (68, 1937585), (85, 1550068), (130, 1013506), (169, 779620), (170, 775034), (221, 596180), (260, 506753), (338, 389810), (340, 387517), (442, 298090), (676, 194905), (845, 155924), (884, 149045), (1105, 119236), (1690, 77962), (2210, 59618), (2293, 57460), (2873, 45860), (3380, 38981), (4420, 29809), (4586, 28730), (5746, 22930), (9172, 14365), (11465, 11492)]