7725380

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{43}}^1\times {\mathrm{691}}^1$

素因数の和:756

約数の個数: 48

約数和(自身を含む): 17903424

約数和(自身を除く): 10178044

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 43, 52, 65, 86, 130, 172, 215, 260, 430, 559, 691, 860, 1118, 1382, 2236, 2764, 2795, 3455, 5590, 6910, 8983, 11180, 13820, 17966, 29713, 35932, 44915, 59426, 89830, 118852, 148565, 179660, 297130, 386269, 594260, 772538, 1545076, 1931345, 3862690, 7725380]

約数ペア:

[(1, 7725380), (2, 3862690), (4, 1931345), (5, 1545076), (10, 772538), (13, 594260), (20, 386269), (26, 297130), (43, 179660), (52, 148565), (65, 118852), (86, 89830), (130, 59426), (172, 44915), (215, 35932), (260, 29713), (430, 17966), (559, 13820), (691, 11180), (860, 8983), (1118, 6910), (1382, 5590), (2236, 3455), (2764, 2795)]