12979585840

素因数分解:

$2^4\times 5^1\times {\mathrm{13}}^1\times {\mathrm{12480371}}^1$

素因数の和:12480397

約数の個数: 40

約数和(自身を含む): 32498888688

約数和(自身を除く): 19519302848

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 20, 26, 40, 52, 65, 80, 104, 130, 208, 260, 520, 1040, 12480371, 24960742, 49921484, 62401855, 99842968, 124803710, 162244823, 199685936, 249607420, 324489646, 499214840, 648979292, 811224115, 998429680, 1297958584, 1622448230, 2595917168, 3244896460, 6489792920, 12979585840]

約数ペア:

[(1, 12979585840), (2, 6489792920), (4, 3244896460), (5, 2595917168), (8, 1622448230), (10, 1297958584), (13, 998429680), (16, 811224115), (20, 648979292), (26, 499214840), (40, 324489646), (52, 249607420), (65, 199685936), (80, 162244823), (104, 124803710), (130, 99842968), (208, 62401855), (260, 49921484), (520, 24960742), (1040, 12480371)]