64362920

素因数分解:

$2^3\times 5^1\times {\mathrm{71}}^1\times {\mathrm{131}}^1\times {\mathrm{173}}^1$

素因数の和:386

約数の個数: 64

約数和(自身を含む): 148832640

約数和(自身を除く): 84469720

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 71, 131, 142, 173, 262, 284, 346, 355, 524, 568, 655, 692, 710, 865, 1048, 1310, 1384, 1420, 1730, 2620, 2840, 3460, 5240, 6920, 9301, 12283, 18602, 22663, 24566, 37204, 45326, 46505, 49132, 61415, 74408, 90652, 93010, 98264, 113315, 122830, 181304, 186020, 226630, 245660, 372040, 453260, 491320, 906520, 1609073, 3218146, 6436292, 8045365, 12872584, 16090730, 32181460, 64362920]

約数ペア:

[(1, 64362920), (2, 32181460), (4, 16090730), (5, 12872584), (8, 8045365), (10, 6436292), (20, 3218146), (40, 1609073), (71, 906520), (131, 491320), (142, 453260), (173, 372040), (262, 245660), (284, 226630), (346, 186020), (355, 181304), (524, 122830), (568, 113315), (655, 98264), (692, 93010), (710, 90652), (865, 74408), (1048, 61415), (1310, 49132), (1384, 46505), (1420, 45326), (1730, 37204), (2620, 24566), (2840, 22663), (3460, 18602), (5240, 12283), (6920, 9301)]