66748580

素因数分解:

$2^2\times 5^1\times {\mathrm{31}}^1\times {\mathrm{199}}^1\times {\mathrm{541}}^1$

素因数の和:780

約数の個数: 48

約数和(自身を含む): 145689600

約数和(自身を除く): 78941020

約数列:

[1, 2, 4, 5, 10, 20, 31, 62, 124, 155, 199, 310, 398, 541, 620, 796, 995, 1082, 1990, 2164, 2705, 3980, 5410, 6169, 10820, 12338, 16771, 24676, 30845, 33542, 61690, 67084, 83855, 107659, 123380, 167710, 215318, 335420, 430636, 538295, 1076590, 2153180, 3337429, 6674858, 13349716, 16687145, 33374290, 66748580]

約数ペア:

[(1, 66748580), (2, 33374290), (4, 16687145), (5, 13349716), (10, 6674858), (20, 3337429), (31, 2153180), (62, 1076590), (124, 538295), (155, 430636), (199, 335420), (310, 215318), (398, 167710), (541, 123380), (620, 107659), (796, 83855), (995, 67084), (1082, 61690), (1990, 33542), (2164, 30845), (2705, 24676), (3980, 16771), (5410, 12338), (6169, 10820)]