8168840

素因数分解:

$2^3\times 5^1\times {\mathrm{17}}^1\times {\mathrm{41}}^1\times {\mathrm{293}}^1$

素因数の和:362

約数の個数: 64

約数和(自身を含む): 20003760

約数和(自身を除く): 11834920

約数列:

[1, 2, 4, 5, 8, 10, 17, 20, 34, 40, 41, 68, 82, 85, 136, 164, 170, 205, 293, 328, 340, 410, 586, 680, 697, 820, 1172, 1394, 1465, 1640, 2344, 2788, 2930, 3485, 4981, 5576, 5860, 6970, 9962, 11720, 12013, 13940, 19924, 24026, 24905, 27880, 39848, 48052, 49810, 60065, 96104, 99620, 120130, 199240, 204221, 240260, 408442, 480520, 816884, 1021105, 1633768, 2042210, 4084420, 8168840]

約数ペア:

[(1, 8168840), (2, 4084420), (4, 2042210), (5, 1633768), (8, 1021105), (10, 816884), (17, 480520), (20, 408442), (34, 240260), (40, 204221), (41, 199240), (68, 120130), (82, 99620), (85, 96104), (136, 60065), (164, 49810), (170, 48052), (205, 39848), (293, 27880), (328, 24905), (340, 24026), (410, 19924), (586, 13940), (680, 12013), (697, 11720), (820, 9962), (1172, 6970), (1394, 5860), (1465, 5576), (1640, 4981), (2344, 3485), (2788, 2930)]