990760

素因数分解:

$2^3\times 5^1\times {\mathrm{17}}^1\times {\mathrm{31}}^1\times {\mathrm{47}}^1$

素因数の和:106

約数の個数: 64

約数和(自身を含む): 2488320

約数和(自身を除く): 1497560

約数列:

[1, 2, 4, 5, 8, 10, 17, 20, 31, 34, 40, 47, 62, 68, 85, 94, 124, 136, 155, 170, 188, 235, 248, 310, 340, 376, 470, 527, 620, 680, 799, 940, 1054, 1240, 1457, 1598, 1880, 2108, 2635, 2914, 3196, 3995, 4216, 5270, 5828, 6392, 7285, 7990, 10540, 11656, 14570, 15980, 21080, 24769, 29140, 31960, 49538, 58280, 99076, 123845, 198152, 247690, 495380, 990760]

約数ペア:

[(1, 990760), (2, 495380), (4, 247690), (5, 198152), (8, 123845), (10, 99076), (17, 58280), (20, 49538), (31, 31960), (34, 29140), (40, 24769), (47, 21080), (62, 15980), (68, 14570), (85, 11656), (94, 10540), (124, 7990), (136, 7285), (155, 6392), (170, 5828), (188, 5270), (235, 4216), (248, 3995), (310, 3196), (340, 2914), (376, 2635), (470, 2108), (527, 1880), (620, 1598), (680, 1457), (799, 1240), (940, 1054)]