20138574850

素因数分解:

$2^1\times 5^2\times {\mathrm{17}}^2\times {\mathrm{43}}^1\times {\mathrm{32411}}^1$

素因数の和:32500

約数の個数: 72

約数和(自身を含む): 40717380528

約数和(自身を除く): 20578805678

約数列:

[1, 2, 5, 10, 17, 25, 34, 43, 50, 85, 86, 170, 215, 289, 425, 430, 578, 731, 850, 1075, 1445, 1462, 2150, 2890, 3655, 7225, 7310, 12427, 14450, 18275, 24854, 32411, 36550, 62135, 64822, 124270, 162055, 310675, 324110, 550987, 621350, 810275, 1101974, 1393673, 1620550, 2754935, 2787346, 5509870, 6968365, 9366779, 13774675, 13936730, 18733558, 23692441, 27549350, 34841825, 46833895, 47384882, 69683650, 93667790, 118462205, 234169475, 236924410, 402771497, 468338950, 592311025, 805542994, 1184622050, 2013857485, 4027714970, 10069287425, 20138574850]

約数ペア:

[(1, 20138574850), (2, 10069287425), (5, 4027714970), (10, 2013857485), (17, 1184622050), (25, 805542994), (34, 592311025), (43, 468338950), (50, 402771497), (85, 236924410), (86, 234169475), (170, 118462205), (215, 93667790), (289, 69683650), (425, 47384882), (430, 46833895), (578, 34841825), (731, 27549350), (850, 23692441), (1075, 18733558), (1445, 13936730), (1462, 13774675), (2150, 9366779), (2890, 6968365), (3655, 5509870), (7225, 2787346), (7310, 2754935), (12427, 1620550), (14450, 1393673), (18275, 1101974), (24854, 810275), (32411, 621350), (36550, 550987), (62135, 324110), (64822, 310675), (124270, 162055)]