66524780

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{643}}^1\times {\mathrm{739}}^1$

素因数の和:1398

約数の個数: 48

約数和(自身を含む): 160124160

約数和(自身を除く): 93599380

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 140, 643, 739, 1286, 1478, 2572, 2956, 3215, 3695, 4501, 5173, 6430, 7390, 9002, 10346, 12860, 14780, 18004, 20692, 22505, 25865, 45010, 51730, 90020, 103460, 475177, 950354, 1900708, 2375885, 3326239, 4751770, 6652478, 9503540, 13304956, 16631195, 33262390, 66524780]

約数ペア:

[(1, 66524780), (2, 33262390), (4, 16631195), (5, 13304956), (7, 9503540), (10, 6652478), (14, 4751770), (20, 3326239), (28, 2375885), (35, 1900708), (70, 950354), (140, 475177), (643, 103460), (739, 90020), (1286, 51730), (1478, 45010), (2572, 25865), (2956, 22505), (3215, 20692), (3695, 18004), (4501, 14780), (5173, 12860), (6430, 10346), (7390, 9002)]