28906460

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{17}}^1\times {\mathrm{59}}^1\times {\mathrm{131}}^1$

素因数の和:227

約数の個数: 96

約数和(自身を含む): 71850240

約数和(自身を除く): 42943780

約数列:

[1, 2, 4, 5, 10, 11, 17, 20, 22, 34, 44, 55, 59, 68, 85, 110, 118, 131, 170, 187, 220, 236, 262, 295, 340, 374, 524, 590, 649, 655, 748, 935, 1003, 1180, 1298, 1310, 1441, 1870, 2006, 2227, 2596, 2620, 2882, 3245, 3740, 4012, 4454, 5015, 5764, 6490, 7205, 7729, 8908, 10030, 11033, 11135, 12980, 14410, 15458, 20060, 22066, 22270, 24497, 28820, 30916, 38645, 44132, 44540, 48994, 55165, 77290, 85019, 97988, 110330, 122485, 131393, 154580, 170038, 220660, 244970, 262786, 340076, 425095, 489940, 525572, 656965, 850190, 1313930, 1445323, 1700380, 2627860, 2890646, 5781292, 7226615, 14453230, 28906460]

約数ペア:

[(1, 28906460), (2, 14453230), (4, 7226615), (5, 5781292), (10, 2890646), (11, 2627860), (17, 1700380), (20, 1445323), (22, 1313930), (34, 850190), (44, 656965), (55, 525572), (59, 489940), (68, 425095), (85, 340076), (110, 262786), (118, 244970), (131, 220660), (170, 170038), (187, 154580), (220, 131393), (236, 122485), (262, 110330), (295, 97988), (340, 85019), (374, 77290), (524, 55165), (590, 48994), (649, 44540), (655, 44132), (748, 38645), (935, 30916), (1003, 28820), (1180, 24497), (1298, 22270), (1310, 22066), (1441, 20060), (1870, 15458), (2006, 14410), (2227, 12980), (2596, 11135), (2620, 11033), (2882, 10030), (3245, 8908), (3740, 7729), (4012, 7205), (4454, 6490), (5015, 5764)]