87175720

素因数分解:

$2^3\times 5^1\times {\mathrm{31}}^1\times {\mathrm{229}}^1\times {\mathrm{307}}^1$

素因数の和:578

約数の個数: 64

約数和(自身を含む): 204019200

約数和(自身を除く): 116843480

約数列:

[1, 2, 4, 5, 8, 10, 20, 31, 40, 62, 124, 155, 229, 248, 307, 310, 458, 614, 620, 916, 1145, 1228, 1240, 1535, 1832, 2290, 2456, 3070, 4580, 6140, 7099, 9160, 9517, 12280, 14198, 19034, 28396, 35495, 38068, 47585, 56792, 70303, 70990, 76136, 95170, 140606, 141980, 190340, 281212, 283960, 351515, 380680, 562424, 703030, 1406060, 2179393, 2812120, 4358786, 8717572, 10896965, 17435144, 21793930, 43587860, 87175720]

約数ペア:

[(1, 87175720), (2, 43587860), (4, 21793930), (5, 17435144), (8, 10896965), (10, 8717572), (20, 4358786), (31, 2812120), (40, 2179393), (62, 1406060), (124, 703030), (155, 562424), (229, 380680), (248, 351515), (307, 283960), (310, 281212), (458, 190340), (614, 141980), (620, 140606), (916, 95170), (1145, 76136), (1228, 70990), (1240, 70303), (1535, 56792), (1832, 47585), (2290, 38068), (2456, 35495), (3070, 28396), (4580, 19034), (6140, 14198), (7099, 12280), (9160, 9517)]