247988780

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{431}}^1\times {\mathrm{2213}}^1$

素因数の和:2666

約数の個数: 48

約数和(自身を含む): 562391424

約数和(自身を除く): 314402644

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 52, 65, 130, 260, 431, 862, 1724, 2155, 2213, 4310, 4426, 5603, 8620, 8852, 11065, 11206, 22130, 22412, 28015, 28769, 44260, 56030, 57538, 112060, 115076, 143845, 287690, 575380, 953803, 1907606, 3815212, 4769015, 9538030, 12399439, 19076060, 24798878, 49597756, 61997195, 123994390, 247988780]

約数ペア:

[(1, 247988780), (2, 123994390), (4, 61997195), (5, 49597756), (10, 24798878), (13, 19076060), (20, 12399439), (26, 9538030), (52, 4769015), (65, 3815212), (130, 1907606), (260, 953803), (431, 575380), (862, 287690), (1724, 143845), (2155, 115076), (2213, 112060), (4310, 57538), (4426, 56030), (5603, 44260), (8620, 28769), (8852, 28015), (11065, 22412), (11206, 22130)]