209068340

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{25939}}^1$

素因数の和:25992

約数の個数: 48

約数和(自身を含む): 488087040

約数和(自身を除く): 279018700

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 31, 52, 62, 65, 124, 130, 155, 260, 310, 403, 620, 806, 1612, 2015, 4030, 8060, 25939, 51878, 103756, 129695, 259390, 337207, 518780, 674414, 804109, 1348828, 1608218, 1686035, 3216436, 3372070, 4020545, 6744140, 8041090, 10453417, 16082180, 20906834, 41813668, 52267085, 104534170, 209068340]

約数ペア:

[(1, 209068340), (2, 104534170), (4, 52267085), (5, 41813668), (10, 20906834), (13, 16082180), (20, 10453417), (26, 8041090), (31, 6744140), (52, 4020545), (62, 3372070), (65, 3216436), (124, 1686035), (130, 1608218), (155, 1348828), (260, 804109), (310, 674414), (403, 518780), (620, 337207), (806, 259390), (1612, 129695), (2015, 103756), (4030, 51878), (8060, 25939)]