19206860

素因数分解:

$2^2\times 5^1\times {\mathrm{41}}^1\times {\mathrm{59}}^1\times {\mathrm{397}}^1$

素因数の和:506

約数の個数: 48

約数和(自身を含む): 42124320

約数和(自身を除く): 22917460

約数列:

[1, 2, 4, 5, 10, 20, 41, 59, 82, 118, 164, 205, 236, 295, 397, 410, 590, 794, 820, 1180, 1588, 1985, 2419, 3970, 4838, 7940, 9676, 12095, 16277, 23423, 24190, 32554, 46846, 48380, 65108, 81385, 93692, 117115, 162770, 234230, 325540, 468460, 960343, 1920686, 3841372, 4801715, 9603430, 19206860]

約数ペア:

[(1, 19206860), (2, 9603430), (4, 4801715), (5, 3841372), (10, 1920686), (20, 960343), (41, 468460), (59, 325540), (82, 234230), (118, 162770), (164, 117115), (205, 93692), (236, 81385), (295, 65108), (397, 48380), (410, 46846), (590, 32554), (794, 24190), (820, 23423), (1180, 16277), (1588, 12095), (1985, 9676), (2419, 7940), (3970, 4838)]