28561360

素因数分解:

$2^4\times 5^1\times {\mathrm{17}}^1\times {\mathrm{21001}}^1$

素因数の和:21031

約数の個数: 40

約数和(自身を含む): 70314696

約数和(自身を除く): 41753336

約数列:

[1, 2, 4, 5, 8, 10, 16, 17, 20, 34, 40, 68, 80, 85, 136, 170, 272, 340, 680, 1360, 21001, 42002, 84004, 105005, 168008, 210010, 336016, 357017, 420020, 714034, 840040, 1428068, 1680080, 1785085, 2856136, 3570170, 5712272, 7140340, 14280680, 28561360]

約数ペア:

[(1, 28561360), (2, 14280680), (4, 7140340), (5, 5712272), (8, 3570170), (10, 2856136), (16, 1785085), (17, 1680080), (20, 1428068), (34, 840040), (40, 714034), (68, 420020), (80, 357017), (85, 336016), (136, 210010), (170, 168008), (272, 105005), (340, 84004), (680, 42002), (1360, 21001)]