253449040

素因数分解:

$2^4\times 5^1\times {\mathrm{13}}^1\times {\mathrm{243701}}^1$

素因数の和:243727

約数の個数: 40

約数和(自身を含む): 634600008

約数和(自身を除く): 381150968

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 20, 26, 40, 52, 65, 80, 104, 130, 208, 260, 520, 1040, 243701, 487402, 974804, 1218505, 1949608, 2437010, 3168113, 3899216, 4874020, 6336226, 9748040, 12672452, 15840565, 19496080, 25344904, 31681130, 50689808, 63362260, 126724520, 253449040]

約数ペア:

[(1, 253449040), (2, 126724520), (4, 63362260), (5, 50689808), (8, 31681130), (10, 25344904), (13, 19496080), (16, 15840565), (20, 12672452), (26, 9748040), (40, 6336226), (52, 4874020), (65, 3899216), (80, 3168113), (104, 2437010), (130, 1949608), (208, 1218505), (260, 974804), (520, 487402), (1040, 243701)]