12918100

素因数分解:

$2^2\times 5^2\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{523}}^1$

素因数の和:569

約数の個数: 72

約数和(自身を含む): 31838240

約数和(自身を除く): 18920140

約数列:

[1, 2, 4, 5, 10, 13, 19, 20, 25, 26, 38, 50, 52, 65, 76, 95, 100, 130, 190, 247, 260, 325, 380, 475, 494, 523, 650, 950, 988, 1046, 1235, 1300, 1900, 2092, 2470, 2615, 4940, 5230, 6175, 6799, 9937, 10460, 12350, 13075, 13598, 19874, 24700, 26150, 27196, 33995, 39748, 49685, 52300, 67990, 99370, 129181, 135980, 169975, 198740, 248425, 258362, 339950, 496850, 516724, 645905, 679900, 993700, 1291810, 2583620, 3229525, 6459050, 12918100]

約数ペア:

[(1, 12918100), (2, 6459050), (4, 3229525), (5, 2583620), (10, 1291810), (13, 993700), (19, 679900), (20, 645905), (25, 516724), (26, 496850), (38, 339950), (50, 258362), (52, 248425), (65, 198740), (76, 169975), (95, 135980), (100, 129181), (130, 99370), (190, 67990), (247, 52300), (260, 49685), (325, 39748), (380, 33995), (475, 27196), (494, 26150), (523, 24700), (650, 19874), (950, 13598), (988, 13075), (1046, 12350), (1235, 10460), (1300, 9937), (1900, 6799), (2092, 6175), (2470, 5230), (2615, 4940)]