64919660

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^2\times {\mathrm{19207}}^1$

素因数の和:19242

約数の個数: 36

約数和(自身を含む): 147632688

約数和(自身を除く): 82713028

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 52, 65, 130, 169, 260, 338, 676, 845, 1690, 3380, 19207, 38414, 76828, 96035, 192070, 249691, 384140, 499382, 998764, 1248455, 2496910, 3245983, 4993820, 6491966, 12983932, 16229915, 32459830, 64919660]

約数ペア:

[(1, 64919660), (2, 32459830), (4, 16229915), (5, 12983932), (10, 6491966), (13, 4993820), (20, 3245983), (26, 2496910), (52, 1248455), (65, 998764), (130, 499382), (169, 384140), (260, 249691), (338, 192070), (676, 96035), (845, 76828), (1690, 38414), (3380, 19207)]