258315968

素因数分解:

$2^6\times {\mathrm{61}}^1\times {\mathrm{127}}^1\times {\mathrm{521}}^1$

素因数の和:721

約数の個数: 56

約数和(自身を含む): 526109184

約数和(自身を除く): 267793216

約数列:

[1, 2, 4, 8, 16, 32, 61, 64, 122, 127, 244, 254, 488, 508, 521, 976, 1016, 1042, 1952, 2032, 2084, 3904, 4064, 4168, 7747, 8128, 8336, 15494, 16672, 30988, 31781, 33344, 61976, 63562, 66167, 123952, 127124, 132334, 247904, 254248, 264668, 495808, 508496, 529336, 1016992, 1058672, 2033984, 2117344, 4036187, 4234688, 8072374, 16144748, 32289496, 64578992, 129157984, 258315968]

約数ペア:

[(1, 258315968), (2, 129157984), (4, 64578992), (8, 32289496), (16, 16144748), (32, 8072374), (61, 4234688), (64, 4036187), (122, 2117344), (127, 2033984), (244, 1058672), (254, 1016992), (488, 529336), (508, 508496), (521, 495808), (976, 264668), (1016, 254248), (1042, 247904), (1952, 132334), (2032, 127124), (2084, 123952), (3904, 66167), (4064, 63562), (4168, 61976), (7747, 33344), (8128, 31781), (8336, 30988), (15494, 16672)]