2040340

素因数分解:

$2^2\times 5^1\times {\mathrm{17}}^2\times {\mathrm{353}}^1$

素因数の和:396

約数の個数: 36

約数和(自身を含む): 4564476

約数和(自身を除く): 2524136

約数列:

[1, 2, 4, 5, 10, 17, 20, 34, 68, 85, 170, 289, 340, 353, 578, 706, 1156, 1412, 1445, 1765, 2890, 3530, 5780, 6001, 7060, 12002, 24004, 30005, 60010, 102017, 120020, 204034, 408068, 510085, 1020170, 2040340]

約数ペア:

[(1, 2040340), (2, 1020170), (4, 510085), (5, 408068), (10, 204034), (17, 120020), (20, 102017), (34, 60010), (68, 30005), (85, 24004), (170, 12002), (289, 7060), (340, 6001), (353, 5780), (578, 3530), (706, 2890), (1156, 1765), (1412, 1445)]