28651120

素因数分解:

$2^4\times 5^1\times {\mathrm{17}}^1\times {\mathrm{21067}}^1$

素因数の和:21097

約数の個数: 40

約数和(自身を含む): 70535664

約数和(自身を除く): 41884544

約数列:

[1, 2, 4, 5, 8, 10, 16, 17, 20, 34, 40, 68, 80, 85, 136, 170, 272, 340, 680, 1360, 21067, 42134, 84268, 105335, 168536, 210670, 337072, 358139, 421340, 716278, 842680, 1432556, 1685360, 1790695, 2865112, 3581390, 5730224, 7162780, 14325560, 28651120]

約数ペア:

[(1, 28651120), (2, 14325560), (4, 7162780), (5, 5730224), (8, 3581390), (10, 2865112), (16, 1790695), (17, 1685360), (20, 1432556), (34, 842680), (40, 716278), (68, 421340), (80, 358139), (85, 337072), (136, 210670), (170, 168536), (272, 105335), (340, 84268), (680, 42134), (1360, 21067)]