2815880

素因数分解:

$2^3\times 5^1\times {\mathrm{17}}^1\times {\mathrm{41}}^1\times {\mathrm{101}}^1$

素因数の和:170

約数の個数: 64

約数和(自身を含む): 6940080

約数和(自身を除く): 4124200

約数列:

[1, 2, 4, 5, 8, 10, 17, 20, 34, 40, 41, 68, 82, 85, 101, 136, 164, 170, 202, 205, 328, 340, 404, 410, 505, 680, 697, 808, 820, 1010, 1394, 1640, 1717, 2020, 2788, 3434, 3485, 4040, 4141, 5576, 6868, 6970, 8282, 8585, 13736, 13940, 16564, 17170, 20705, 27880, 33128, 34340, 41410, 68680, 70397, 82820, 140794, 165640, 281588, 351985, 563176, 703970, 1407940, 2815880]

約数ペア:

[(1, 2815880), (2, 1407940), (4, 703970), (5, 563176), (8, 351985), (10, 281588), (17, 165640), (20, 140794), (34, 82820), (40, 70397), (41, 68680), (68, 41410), (82, 34340), (85, 33128), (101, 27880), (136, 20705), (164, 17170), (170, 16564), (202, 13940), (205, 13736), (328, 8585), (340, 8282), (404, 6970), (410, 6868), (505, 5576), (680, 4141), (697, 4040), (808, 3485), (820, 3434), (1010, 2788), (1394, 2020), (1640, 1717)]