408067700

素因数分解:

$2^2\times 5^2\times {\mathrm{29}}^1\times {\mathrm{223}}^1\times {\mathrm{631}}^1$

素因数の和:897

約数の個数: 72

約数和(自身を含む): 921607680

約数和(自身を除く): 513539980

約数列:

[1, 2, 4, 5, 10, 20, 25, 29, 50, 58, 100, 116, 145, 223, 290, 446, 580, 631, 725, 892, 1115, 1262, 1450, 2230, 2524, 2900, 3155, 4460, 5575, 6310, 6467, 11150, 12620, 12934, 15775, 18299, 22300, 25868, 31550, 32335, 36598, 63100, 64670, 73196, 91495, 129340, 140713, 161675, 182990, 281426, 323350, 365980, 457475, 562852, 646700, 703565, 914950, 1407130, 1829900, 2814260, 3517825, 4080677, 7035650, 8161354, 14071300, 16322708, 20403385, 40806770, 81613540, 102016925, 204033850, 408067700]

約数ペア:

[(1, 408067700), (2, 204033850), (4, 102016925), (5, 81613540), (10, 40806770), (20, 20403385), (25, 16322708), (29, 14071300), (50, 8161354), (58, 7035650), (100, 4080677), (116, 3517825), (145, 2814260), (223, 1829900), (290, 1407130), (446, 914950), (580, 703565), (631, 646700), (725, 562852), (892, 457475), (1115, 365980), (1262, 323350), (1450, 281426), (2230, 182990), (2524, 161675), (2900, 140713), (3155, 129340), (4460, 91495), (5575, 73196), (6310, 64670), (6467, 63100), (11150, 36598), (12620, 32335), (12934, 31550), (15775, 25868), (18299, 22300)]