15958820

素因数分解:

$2^2\times 5^1\times {\mathrm{61}}^1\times {\mathrm{103}}^1\times {\mathrm{127}}^1$

素因数の和:300

約数の個数: 48

約数和(自身を含む): 34664448

約数和(自身を除く): 18705628

約数列:

[1, 2, 4, 5, 10, 20, 61, 103, 122, 127, 206, 244, 254, 305, 412, 508, 515, 610, 635, 1030, 1220, 1270, 2060, 2540, 6283, 7747, 12566, 13081, 15494, 25132, 26162, 30988, 31415, 38735, 52324, 62830, 65405, 77470, 125660, 130810, 154940, 261620, 797941, 1595882, 3191764, 3989705, 7979410, 15958820]

約数ペア:

[(1, 15958820), (2, 7979410), (4, 3989705), (5, 3191764), (10, 1595882), (20, 797941), (61, 261620), (103, 154940), (122, 130810), (127, 125660), (206, 77470), (244, 65405), (254, 62830), (305, 52324), (412, 38735), (508, 31415), (515, 30988), (610, 26162), (635, 25132), (1030, 15494), (1220, 13081), (1270, 12566), (2060, 7747), (2540, 6283)]