19815100

素因数分解:

$2^2\times 5^2\times {\mathrm{19}}^1\times {\mathrm{10429}}^1$

素因数の和:10462

約数の個数: 36

約数和(自身を含む): 45266200

約数和(自身を除く): 25451100

約数列:

[1, 2, 4, 5, 10, 19, 20, 25, 38, 50, 76, 95, 100, 190, 380, 475, 950, 1900, 10429, 20858, 41716, 52145, 104290, 198151, 208580, 260725, 396302, 521450, 792604, 990755, 1042900, 1981510, 3963020, 4953775, 9907550, 19815100]

約数ペア:

[(1, 19815100), (2, 9907550), (4, 4953775), (5, 3963020), (10, 1981510), (19, 1042900), (20, 990755), (25, 792604), (38, 521450), (50, 396302), (76, 260725), (95, 208580), (100, 198151), (190, 104290), (380, 52145), (475, 41716), (950, 20858), (1900, 10429)]