64988950

素因数分解:

$2^1\times 5^2\times {\mathrm{13}}^2\times {\mathrm{7691}}^1$

素因数の和:7729

約数の個数: 36

約数和(自身を含む): 130910148

約数和(自身を除く): 65921198

約数列:

[1, 2, 5, 10, 13, 25, 26, 50, 65, 130, 169, 325, 338, 650, 845, 1690, 4225, 7691, 8450, 15382, 38455, 76910, 99983, 192275, 199966, 384550, 499915, 999830, 1299779, 2499575, 2599558, 4999150, 6498895, 12997790, 32494475, 64988950]

約数ペア:

[(1, 64988950), (2, 32494475), (5, 12997790), (10, 6498895), (13, 4999150), (25, 2599558), (26, 2499575), (50, 1299779), (65, 999830), (130, 499915), (169, 384550), (325, 199966), (338, 192275), (650, 99983), (845, 76910), (1690, 38455), (4225, 15382), (7691, 8450)]