2145400

素因数分解:

$2^3\times 5^2\times {\mathrm{17}}^1\times {\mathrm{631}}^1$

素因数の和:664

約数の個数: 48

約数和(自身を含む): 5289840

約数和(自身を除く): 3144440

約数列:

[1, 2, 4, 5, 8, 10, 17, 20, 25, 34, 40, 50, 68, 85, 100, 136, 170, 200, 340, 425, 631, 680, 850, 1262, 1700, 2524, 3155, 3400, 5048, 6310, 10727, 12620, 15775, 21454, 25240, 31550, 42908, 53635, 63100, 85816, 107270, 126200, 214540, 268175, 429080, 536350, 1072700, 2145400]

約数ペア:

[(1, 2145400), (2, 1072700), (4, 536350), (5, 429080), (8, 268175), (10, 214540), (17, 126200), (20, 107270), (25, 85816), (34, 63100), (40, 53635), (50, 42908), (68, 31550), (85, 25240), (100, 21454), (136, 15775), (170, 12620), (200, 10727), (340, 6310), (425, 5048), (631, 3400), (680, 3155), (850, 2524), (1262, 1700)]