291270520

素因数分解:

$2^3\times 5^1\times {\mathrm{17}}^1\times {\mathrm{428339}}^1$

素因数の和:428367

約数の個数: 32

約数和(自身を含む): 693910800

約数和(自身を除く): 402640280

約数列:

[1, 2, 4, 5, 8, 10, 17, 20, 34, 40, 68, 85, 136, 170, 340, 680, 428339, 856678, 1713356, 2141695, 3426712, 4283390, 7281763, 8566780, 14563526, 17133560, 29127052, 36408815, 58254104, 72817630, 145635260, 291270520]

約数ペア:

[(1, 291270520), (2, 145635260), (4, 72817630), (5, 58254104), (8, 36408815), (10, 29127052), (17, 17133560), (20, 14563526), (34, 8566780), (40, 7281763), (68, 4283390), (85, 3426712), (136, 2141695), (170, 1713356), (340, 856678), (680, 428339)]