20399150

素因数分解:

$2^1\times 5^2\times {\mathrm{17}}^1\times {\mathrm{103}}^1\times {\mathrm{233}}^1$

素因数の和:365

約数の個数: 48

約数和(自身を含む): 40738464

約数和(自身を除く): 20339314

約数列:

[1, 2, 5, 10, 17, 25, 34, 50, 85, 103, 170, 206, 233, 425, 466, 515, 850, 1030, 1165, 1751, 2330, 2575, 3502, 3961, 5150, 5825, 7922, 8755, 11650, 17510, 19805, 23999, 39610, 43775, 47998, 87550, 99025, 119995, 198050, 239990, 407983, 599975, 815966, 1199950, 2039915, 4079830, 10199575, 20399150]

約数ペア:

[(1, 20399150), (2, 10199575), (5, 4079830), (10, 2039915), (17, 1199950), (25, 815966), (34, 599975), (50, 407983), (85, 239990), (103, 198050), (170, 119995), (206, 99025), (233, 87550), (425, 47998), (466, 43775), (515, 39610), (850, 23999), (1030, 19805), (1165, 17510), (1751, 11650), (2330, 8755), (2575, 7922), (3502, 5825), (3961, 5150)]