677840

素因数分解:

$2^4\times 5^1\times {\mathrm{37}}^1\times {\mathrm{229}}^1$

素因数の和:279

約数の個数: 40

約数和(自身を含む): 1625640

約数和(自身を除く): 947800

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 37, 40, 74, 80, 148, 185, 229, 296, 370, 458, 592, 740, 916, 1145, 1480, 1832, 2290, 2960, 3664, 4580, 8473, 9160, 16946, 18320, 33892, 42365, 67784, 84730, 135568, 169460, 338920, 677840]

約数ペア:

[(1, 677840), (2, 338920), (4, 169460), (5, 135568), (8, 84730), (10, 67784), (16, 42365), (20, 33892), (37, 18320), (40, 16946), (74, 9160), (80, 8473), (148, 4580), (185, 3664), (229, 2960), (296, 2290), (370, 1832), (458, 1480), (592, 1145), (740, 916)]