15771880

素因数分解:

$2^3\times 5^1\times {\mathrm{41}}^1\times {\mathrm{59}}^1\times {\mathrm{163}}^1$

素因数の和:274

約数の個数: 64

約数和(自身を含む): 37195200

約数和(自身を除く): 21423320

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 41, 59, 82, 118, 163, 164, 205, 236, 295, 326, 328, 410, 472, 590, 652, 815, 820, 1180, 1304, 1630, 1640, 2360, 2419, 3260, 4838, 6520, 6683, 9617, 9676, 12095, 13366, 19234, 19352, 24190, 26732, 33415, 38468, 48085, 48380, 53464, 66830, 76936, 96170, 96760, 133660, 192340, 267320, 384680, 394297, 788594, 1577188, 1971485, 3154376, 3942970, 7885940, 15771880]

約数ペア:

[(1, 15771880), (2, 7885940), (4, 3942970), (5, 3154376), (8, 1971485), (10, 1577188), (20, 788594), (40, 394297), (41, 384680), (59, 267320), (82, 192340), (118, 133660), (163, 96760), (164, 96170), (205, 76936), (236, 66830), (295, 53464), (326, 48380), (328, 48085), (410, 38468), (472, 33415), (590, 26732), (652, 24190), (815, 19352), (820, 19234), (1180, 13366), (1304, 12095), (1630, 9676), (1640, 9617), (2360, 6683), (2419, 6520), (3260, 4838)]