19758160

素因数分解:

$2^4\times 5^1\times {\mathrm{31}}^2\times {\mathrm{257}}^1$

素因数の和:332

約数の個数: 60

約数和(自身を含む): 47652084

約数和(自身を除く): 27893924

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 31, 40, 62, 80, 124, 155, 248, 257, 310, 496, 514, 620, 961, 1028, 1240, 1285, 1922, 2056, 2480, 2570, 3844, 4112, 4805, 5140, 7688, 7967, 9610, 10280, 15376, 15934, 19220, 20560, 31868, 38440, 39835, 63736, 76880, 79670, 127472, 159340, 246977, 318680, 493954, 637360, 987908, 1234885, 1975816, 2469770, 3951632, 4939540, 9879080, 19758160]

約数ペア:

[(1, 19758160), (2, 9879080), (4, 4939540), (5, 3951632), (8, 2469770), (10, 1975816), (16, 1234885), (20, 987908), (31, 637360), (40, 493954), (62, 318680), (80, 246977), (124, 159340), (155, 127472), (248, 79670), (257, 76880), (310, 63736), (496, 39835), (514, 38440), (620, 31868), (961, 20560), (1028, 19220), (1240, 15934), (1285, 15376), (1922, 10280), (2056, 9610), (2480, 7967), (2570, 7688), (3844, 5140), (4112, 4805)]