4019240

素因数分解:

$2^3\times 5^1\times {\mathrm{89}}^1\times {\mathrm{1129}}^1$

素因数の和:1229

約数の個数: 32

約数和(自身を含む): 9153000

約数和(自身を除く): 5133760

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 89, 178, 356, 445, 712, 890, 1129, 1780, 2258, 3560, 4516, 5645, 9032, 11290, 22580, 45160, 100481, 200962, 401924, 502405, 803848, 1004810, 2009620, 4019240]

約数ペア:

[(1, 4019240), (2, 2009620), (4, 1004810), (5, 803848), (8, 502405), (10, 401924), (20, 200962), (40, 100481), (89, 45160), (178, 22580), (356, 11290), (445, 9032), (712, 5645), (890, 4516), (1129, 3560), (1780, 2258)]