31222960

素因数分解:

$2^4\times 5^1\times {\mathrm{23}}^1\times {\mathrm{71}}^1\times {\mathrm{239}}^1$

素因数の和:346

約数の個数: 80

約数和(自身を含む): 77137920

約数和(自身を除く): 45914960

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 23, 40, 46, 71, 80, 92, 115, 142, 184, 230, 239, 284, 355, 368, 460, 478, 568, 710, 920, 956, 1136, 1195, 1420, 1633, 1840, 1912, 2390, 2840, 3266, 3824, 4780, 5497, 5680, 6532, 8165, 9560, 10994, 13064, 16330, 16969, 19120, 21988, 26128, 27485, 32660, 33938, 43976, 54970, 65320, 67876, 84845, 87952, 109940, 130640, 135752, 169690, 219880, 271504, 339380, 390287, 439760, 678760, 780574, 1357520, 1561148, 1951435, 3122296, 3902870, 6244592, 7805740, 15611480, 31222960]

約数ペア:

[(1, 31222960), (2, 15611480), (4, 7805740), (5, 6244592), (8, 3902870), (10, 3122296), (16, 1951435), (20, 1561148), (23, 1357520), (40, 780574), (46, 678760), (71, 439760), (80, 390287), (92, 339380), (115, 271504), (142, 219880), (184, 169690), (230, 135752), (239, 130640), (284, 109940), (355, 87952), (368, 84845), (460, 67876), (478, 65320), (568, 54970), (710, 43976), (920, 33938), (956, 32660), (1136, 27485), (1195, 26128), (1420, 21988), (1633, 19120), (1840, 16969), (1912, 16330), (2390, 13064), (2840, 10994), (3266, 9560), (3824, 8165), (4780, 6532), (5497, 5680)]