81880080

素因数分解:

$2^4\times 3^1\times 5^1\times {\mathrm{311}}^1\times {\mathrm{1097}}^1$

素因数の和:1424

約数の個数: 80

約数和(自身を含む): 254876544

約数和(自身を除く): 172996464

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 16, 20, 24, 30, 40, 48, 60, 80, 120, 240, 311, 622, 933, 1097, 1244, 1555, 1866, 2194, 2488, 3110, 3291, 3732, 4388, 4665, 4976, 5485, 6220, 6582, 7464, 8776, 9330, 10970, 12440, 13164, 14928, 16455, 17552, 18660, 21940, 24880, 26328, 32910, 37320, 43880, 52656, 65820, 74640, 87760, 131640, 263280, 341167, 682334, 1023501, 1364668, 1705835, 2047002, 2729336, 3411670, 4094004, 5117505, 5458672, 6823340, 8188008, 10235010, 13646680, 16376016, 20470020, 27293360, 40940040, 81880080]

約数ペア:

[(1, 81880080), (2, 40940040), (3, 27293360), (4, 20470020), (5, 16376016), (6, 13646680), (8, 10235010), (10, 8188008), (12, 6823340), (15, 5458672), (16, 5117505), (20, 4094004), (24, 3411670), (30, 2729336), (40, 2047002), (48, 1705835), (60, 1364668), (80, 1023501), (120, 682334), (240, 341167), (311, 263280), (622, 131640), (933, 87760), (1097, 74640), (1244, 65820), (1555, 52656), (1866, 43880), (2194, 37320), (2488, 32910), (3110, 26328), (3291, 24880), (3732, 21940), (4388, 18660), (4665, 17552), (4976, 16455), (5485, 14928), (6220, 13164), (6582, 12440), (7464, 10970), (8776, 9330)]