28345120

素因数分解:

$2^5\times 5^1\times {\mathrm{17}}^2\times {\mathrm{613}}^1$

素因数の和:662

約数の個数: 72

約数和(自身を含む): 71252244

約数和(自身を除く): 42907124

約数列:

[1, 2, 4, 5, 8, 10, 16, 17, 20, 32, 34, 40, 68, 80, 85, 136, 160, 170, 272, 289, 340, 544, 578, 613, 680, 1156, 1226, 1360, 1445, 2312, 2452, 2720, 2890, 3065, 4624, 4904, 5780, 6130, 9248, 9808, 10421, 11560, 12260, 19616, 20842, 23120, 24520, 41684, 46240, 49040, 52105, 83368, 98080, 104210, 166736, 177157, 208420, 333472, 354314, 416840, 708628, 833680, 885785, 1417256, 1667360, 1771570, 2834512, 3543140, 5669024, 7086280, 14172560, 28345120]

約数ペア:

[(1, 28345120), (2, 14172560), (4, 7086280), (5, 5669024), (8, 3543140), (10, 2834512), (16, 1771570), (17, 1667360), (20, 1417256), (32, 885785), (34, 833680), (40, 708628), (68, 416840), (80, 354314), (85, 333472), (136, 208420), (160, 177157), (170, 166736), (272, 104210), (289, 98080), (340, 83368), (544, 52105), (578, 49040), (613, 46240), (680, 41684), (1156, 24520), (1226, 23120), (1360, 20842), (1445, 19616), (2312, 12260), (2452, 11560), (2720, 10421), (2890, 9808), (3065, 9248), (4624, 6130), (4904, 5780)]