520066725

素因数分解:

$3^1\times 5^2\times {\mathrm{43}}^1\times {\mathrm{131}}^1\times {\mathrm{1231}}^1$

素因数の和:1418

約数の個数: 48

約数和(自身を含む): 887276544

約数和(自身を除く): 367209819

約数列:

[1, 3, 5, 15, 25, 43, 75, 129, 131, 215, 393, 645, 655, 1075, 1231, 1965, 3225, 3275, 3693, 5633, 6155, 9825, 16899, 18465, 28165, 30775, 52933, 84495, 92325, 140825, 158799, 161261, 264665, 422475, 483783, 793995, 806305, 1323325, 2418915, 3969975, 4031525, 6934223, 12094575, 20802669, 34671115, 104013345, 173355575, 520066725]

約数ペア:

[(1, 520066725), (3, 173355575), (5, 104013345), (15, 34671115), (25, 20802669), (43, 12094575), (75, 6934223), (129, 4031525), (131, 3969975), (215, 2418915), (393, 1323325), (645, 806305), (655, 793995), (1075, 483783), (1231, 422475), (1965, 264665), (3225, 161261), (3275, 158799), (3693, 140825), (5633, 92325), (6155, 84495), (9825, 52933), (16899, 30775), (18465, 28165)]