31687480

素因数分解:

$2^3\times 5^1\times {\mathrm{11}}^2\times {\mathrm{6547}}^1$

素因数の和:6580

約数の個数: 48

約数和(自身を含む): 78379560

約数和(自身を除く): 46692080

約数列:

[1, 2, 4, 5, 8, 10, 11, 20, 22, 40, 44, 55, 88, 110, 121, 220, 242, 440, 484, 605, 968, 1210, 2420, 4840, 6547, 13094, 26188, 32735, 52376, 65470, 72017, 130940, 144034, 261880, 288068, 360085, 576136, 720170, 792187, 1440340, 1584374, 2880680, 3168748, 3960935, 6337496, 7921870, 15843740, 31687480]

約数ペア:

[(1, 31687480), (2, 15843740), (4, 7921870), (5, 6337496), (8, 3960935), (10, 3168748), (11, 2880680), (20, 1584374), (22, 1440340), (40, 792187), (44, 720170), (55, 576136), (88, 360085), (110, 288068), (121, 261880), (220, 144034), (242, 130940), (440, 72017), (484, 65470), (605, 52376), (968, 32735), (1210, 26188), (2420, 13094), (4840, 6547)]