1621100

素因数分解:

$2^2\times 5^2\times {\mathrm{13}}^1\times {\mathrm{29}}^1\times {\mathrm{43}}^1$

素因数の和:99

約数の個数: 72

約数和(自身を含む): 4010160

約数和(自身を除く): 2389060

約数列:

[1, 2, 4, 5, 10, 13, 20, 25, 26, 29, 43, 50, 52, 58, 65, 86, 100, 116, 130, 145, 172, 215, 260, 290, 325, 377, 430, 559, 580, 650, 725, 754, 860, 1075, 1118, 1247, 1300, 1450, 1508, 1885, 2150, 2236, 2494, 2795, 2900, 3770, 4300, 4988, 5590, 6235, 7540, 9425, 11180, 12470, 13975, 16211, 18850, 24940, 27950, 31175, 32422, 37700, 55900, 62350, 64844, 81055, 124700, 162110, 324220, 405275, 810550, 1621100]

約数ペア:

[(1, 1621100), (2, 810550), (4, 405275), (5, 324220), (10, 162110), (13, 124700), (20, 81055), (25, 64844), (26, 62350), (29, 55900), (43, 37700), (50, 32422), (52, 31175), (58, 27950), (65, 24940), (86, 18850), (100, 16211), (116, 13975), (130, 12470), (145, 11180), (172, 9425), (215, 7540), (260, 6235), (290, 5590), (325, 4988), (377, 4300), (430, 3770), (559, 2900), (580, 2795), (650, 2494), (725, 2236), (754, 2150), (860, 1885), (1075, 1508), (1118, 1450), (1247, 1300)]