78257725

素因数分解:

$5^2\times 7^1\times {\mathrm{13}}^1\times {\mathrm{41}}^1\times {\mathrm{839}}^1$

素因数の和:910

約数の個数: 48

約数和(自身を含む): 122492160

約数和(自身を除く): 44234435

約数列:

[1, 5, 7, 13, 25, 35, 41, 65, 91, 175, 205, 287, 325, 455, 533, 839, 1025, 1435, 2275, 2665, 3731, 4195, 5873, 7175, 10907, 13325, 18655, 20975, 29365, 34399, 54535, 76349, 93275, 146825, 171995, 240793, 272675, 381745, 447187, 859975, 1203965, 1908725, 2235935, 3130309, 6019825, 11179675, 15651545, 78257725]

約数ペア:

[(1, 78257725), (5, 15651545), (7, 11179675), (13, 6019825), (25, 3130309), (35, 2235935), (41, 1908725), (65, 1203965), (91, 859975), (175, 447187), (205, 381745), (287, 272675), (325, 240793), (455, 171995), (533, 146825), (839, 93275), (1025, 76349), (1435, 54535), (2275, 34399), (2665, 29365), (3731, 20975), (4195, 18655), (5873, 13325), (7175, 10907)]