149366920

素因数分解:

$2^3\times 5^1\times {\mathrm{89}}^1\times {\mathrm{41957}}^1$

素因数の和:42057

約数の個数: 32

約数和(自身を含む): 339859800

約数和(自身を除く): 190492880

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 89, 178, 356, 445, 712, 890, 1780, 3560, 41957, 83914, 167828, 209785, 335656, 419570, 839140, 1678280, 3734173, 7468346, 14936692, 18670865, 29873384, 37341730, 74683460, 149366920]

約数ペア:

[(1, 149366920), (2, 74683460), (4, 37341730), (5, 29873384), (8, 18670865), (10, 14936692), (20, 7468346), (40, 3734173), (89, 1678280), (178, 839140), (356, 419570), (445, 335656), (712, 209785), (890, 167828), (1780, 83914), (3560, 41957)]