257822520

素因数分解:

$2^3\times 3^1\times 5^1\times {\mathrm{331}}^1\times {\mathrm{6491}}^1$

素因数の和:6836

約数の個数: 64

約数和(自身を含む): 775923840

約数和(自身を除く): 518101320

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 20, 24, 30, 40, 60, 120, 331, 662, 993, 1324, 1655, 1986, 2648, 3310, 3972, 4965, 6491, 6620, 7944, 9930, 12982, 13240, 19473, 19860, 25964, 32455, 38946, 39720, 51928, 64910, 77892, 97365, 129820, 155784, 194730, 259640, 389460, 778920, 2148521, 4297042, 6445563, 8594084, 10742605, 12891126, 17188168, 21485210, 25782252, 32227815, 42970420, 51564504, 64455630, 85940840, 128911260, 257822520]

約数ペア:

[(1, 257822520), (2, 128911260), (3, 85940840), (4, 64455630), (5, 51564504), (6, 42970420), (8, 32227815), (10, 25782252), (12, 21485210), (15, 17188168), (20, 12891126), (24, 10742605), (30, 8594084), (40, 6445563), (60, 4297042), (120, 2148521), (331, 778920), (662, 389460), (993, 259640), (1324, 194730), (1655, 155784), (1986, 129820), (2648, 97365), (3310, 77892), (3972, 64910), (4965, 51928), (6491, 39720), (6620, 38946), (7944, 32455), (9930, 25964), (12982, 19860), (13240, 19473)]