28839400

素因数分解:

$2^3\times 5^2\times {\mathrm{41}}^1\times {\mathrm{3517}}^1$

素因数の和:3574

約数の個数: 48

約数和(自身を含む): 68706540

約数和(自身を除く): 39867140

約数列:

[1, 2, 4, 5, 8, 10, 20, 25, 40, 41, 50, 82, 100, 164, 200, 205, 328, 410, 820, 1025, 1640, 2050, 3517, 4100, 7034, 8200, 14068, 17585, 28136, 35170, 70340, 87925, 140680, 144197, 175850, 288394, 351700, 576788, 703400, 720985, 1153576, 1441970, 2883940, 3604925, 5767880, 7209850, 14419700, 28839400]

約数ペア:

[(1, 28839400), (2, 14419700), (4, 7209850), (5, 5767880), (8, 3604925), (10, 2883940), (20, 1441970), (25, 1153576), (40, 720985), (41, 703400), (50, 576788), (82, 351700), (100, 288394), (164, 175850), (200, 144197), (205, 140680), (328, 87925), (410, 70340), (820, 35170), (1025, 28136), (1640, 17585), (2050, 14068), (3517, 8200), (4100, 7034)]