100865680

素因数分解:

$2^4\times 5^1\times {\mathrm{19}}^1\times {\mathrm{66359}}^1$

素因数の和:66391

約数の個数: 40

約数和(自身を含む): 246859200

約数和(自身を除く): 145993520

約数列:

[1, 2, 4, 5, 8, 10, 16, 19, 20, 38, 40, 76, 80, 95, 152, 190, 304, 380, 760, 1520, 66359, 132718, 265436, 331795, 530872, 663590, 1061744, 1260821, 1327180, 2521642, 2654360, 5043284, 5308720, 6304105, 10086568, 12608210, 20173136, 25216420, 50432840, 100865680]

約数ペア:

[(1, 100865680), (2, 50432840), (4, 25216420), (5, 20173136), (8, 12608210), (10, 10086568), (16, 6304105), (19, 5308720), (20, 5043284), (38, 2654360), (40, 2521642), (76, 1327180), (80, 1260821), (95, 1061744), (152, 663590), (190, 530872), (304, 331795), (380, 265436), (760, 132718), (1520, 66359)]