1815666980

素因数分解:

$2^2\times 5^1\times {\mathrm{17}}^1\times {\mathrm{19}}^1\times {\mathrm{281063}}^1$

素因数の和:281108

約数の個数: 48

約数和(自身を含む): 4249687680

約数和(自身を除く): 2434020700

約数列:

[1, 2, 4, 5, 10, 17, 19, 20, 34, 38, 68, 76, 85, 95, 170, 190, 323, 340, 380, 646, 1292, 1615, 3230, 6460, 281063, 562126, 1124252, 1405315, 2810630, 4778071, 5340197, 5621260, 9556142, 10680394, 19112284, 21360788, 23890355, 26700985, 47780710, 53401970, 90783349, 95561420, 106803940, 181566698, 363133396, 453916745, 907833490, 1815666980]

約数ペア:

[(1, 1815666980), (2, 907833490), (4, 453916745), (5, 363133396), (10, 181566698), (17, 106803940), (19, 95561420), (20, 90783349), (34, 53401970), (38, 47780710), (68, 26700985), (76, 23890355), (85, 21360788), (95, 19112284), (170, 10680394), (190, 9556142), (323, 5621260), (340, 5340197), (380, 4778071), (646, 2810630), (1292, 1405315), (1615, 1124252), (3230, 562126), (6460, 281063)]