306251480

素因数分解:

$2^3\times 5^1\times {\mathrm{31}}^3\times {\mathrm{257}}^1$

素因数の和:361

約数の個数: 64

約数和(自身を含む): 714804480

約数和(自身を除く): 408553000

約数列:

[1, 2, 4, 5, 8, 10, 20, 31, 40, 62, 124, 155, 248, 257, 310, 514, 620, 961, 1028, 1240, 1285, 1922, 2056, 2570, 3844, 4805, 5140, 7688, 7967, 9610, 10280, 15934, 19220, 29791, 31868, 38440, 39835, 59582, 63736, 79670, 119164, 148955, 159340, 238328, 246977, 297910, 318680, 493954, 595820, 987908, 1191640, 1234885, 1975816, 2469770, 4939540, 7656287, 9879080, 15312574, 30625148, 38281435, 61250296, 76562870, 153125740, 306251480]

約数ペア:

[(1, 306251480), (2, 153125740), (4, 76562870), (5, 61250296), (8, 38281435), (10, 30625148), (20, 15312574), (31, 9879080), (40, 7656287), (62, 4939540), (124, 2469770), (155, 1975816), (248, 1234885), (257, 1191640), (310, 987908), (514, 595820), (620, 493954), (961, 318680), (1028, 297910), (1240, 246977), (1285, 238328), (1922, 159340), (2056, 148955), (2570, 119164), (3844, 79670), (4805, 63736), (5140, 59582), (7688, 39835), (7967, 38440), (9610, 31868), (10280, 29791), (15934, 19220)]