72638780

素因数分解:

$2^2\times 5^1\times {\mathrm{1091}}^1\times {\mathrm{3329}}^1$

素因数の和:4429

約数の個数: 24

約数和(自身を含む): 152727120

約数和(自身を除く): 80088340

約数列:

[1, 2, 4, 5, 10, 20, 1091, 2182, 3329, 4364, 5455, 6658, 10910, 13316, 16645, 21820, 33290, 66580, 3631939, 7263878, 14527756, 18159695, 36319390, 72638780]

約数ペア:

[(1, 72638780), (2, 36319390), (4, 18159695), (5, 14527756), (10, 7263878), (20, 3631939), (1091, 66580), (2182, 33290), (3329, 21820), (4364, 16645), (5455, 13316), (6658, 10910)]