66655520

素因数分解:

$2^5\times 5^1\times {\mathrm{257}}^1\times {\mathrm{1621}}^1$

素因数の和:1893

約数の個数: 48

約数和(自身を含む): 158183928

約数和(自身を除く): 91528408

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 80, 160, 257, 514, 1028, 1285, 1621, 2056, 2570, 3242, 4112, 5140, 6484, 8105, 8224, 10280, 12968, 16210, 20560, 25936, 32420, 41120, 51872, 64840, 129680, 259360, 416597, 833194, 1666388, 2082985, 3332776, 4165970, 6665552, 8331940, 13331104, 16663880, 33327760, 66655520]

約数ペア:

[(1, 66655520), (2, 33327760), (4, 16663880), (5, 13331104), (8, 8331940), (10, 6665552), (16, 4165970), (20, 3332776), (32, 2082985), (40, 1666388), (80, 833194), (160, 416597), (257, 259360), (514, 129680), (1028, 64840), (1285, 51872), (1621, 41120), (2056, 32420), (2570, 25936), (3242, 20560), (4112, 16210), (5140, 12968), (6484, 10280), (8105, 8224)]