17518540

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^2\times {\mathrm{71}}^1\times {\mathrm{73}}^1$

素因数の和:179

約数の個数: 72

約数和(自身を含む): 40951008

約数和(自身を除く): 23432468

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 52, 65, 71, 73, 130, 142, 146, 169, 260, 284, 292, 338, 355, 365, 676, 710, 730, 845, 923, 949, 1420, 1460, 1690, 1846, 1898, 3380, 3692, 3796, 4615, 4745, 5183, 9230, 9490, 10366, 11999, 12337, 18460, 18980, 20732, 23998, 24674, 25915, 47996, 49348, 51830, 59995, 61685, 67379, 103660, 119990, 123370, 134758, 239980, 246740, 269516, 336895, 673790, 875927, 1347580, 1751854, 3503708, 4379635, 8759270, 17518540]

約数ペア:

[(1, 17518540), (2, 8759270), (4, 4379635), (5, 3503708), (10, 1751854), (13, 1347580), (20, 875927), (26, 673790), (52, 336895), (65, 269516), (71, 246740), (73, 239980), (130, 134758), (142, 123370), (146, 119990), (169, 103660), (260, 67379), (284, 61685), (292, 59995), (338, 51830), (355, 49348), (365, 47996), (676, 25915), (710, 24674), (730, 23998), (845, 20732), (923, 18980), (949, 18460), (1420, 12337), (1460, 11999), (1690, 10366), (1846, 9490), (1898, 9230), (3380, 5183), (3692, 4745), (3796, 4615)]