138351640

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{43}}^1\times {\mathrm{11491}}^1$

素因数の和:11552

約数の個数: 64

約数和(自身を含む): 364066560

約数和(自身を除く): 225714920

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 43, 56, 70, 86, 140, 172, 215, 280, 301, 344, 430, 602, 860, 1204, 1505, 1720, 2408, 3010, 6020, 11491, 12040, 22982, 45964, 57455, 80437, 91928, 114910, 160874, 229820, 321748, 402185, 459640, 494113, 643496, 804370, 988226, 1608740, 1976452, 2470565, 3217480, 3458791, 3952904, 4941130, 6917582, 9882260, 13835164, 17293955, 19764520, 27670328, 34587910, 69175820, 138351640]

約数ペア:

[(1, 138351640), (2, 69175820), (4, 34587910), (5, 27670328), (7, 19764520), (8, 17293955), (10, 13835164), (14, 9882260), (20, 6917582), (28, 4941130), (35, 3952904), (40, 3458791), (43, 3217480), (56, 2470565), (70, 1976452), (86, 1608740), (140, 988226), (172, 804370), (215, 643496), (280, 494113), (301, 459640), (344, 402185), (430, 321748), (602, 229820), (860, 160874), (1204, 114910), (1505, 91928), (1720, 80437), (2408, 57455), (3010, 45964), (6020, 22982), (11491, 12040)]