20804760

素因数分解:

$2^3\times 3^2\times 5^1\times {\mathrm{57791}}^1$

素因数の和:57808

約数の個数: 48

約数和(自身を含む): 67616640

約数和(自身を除く): 46811880

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 18, 20, 24, 30, 36, 40, 45, 60, 72, 90, 120, 180, 360, 57791, 115582, 173373, 231164, 288955, 346746, 462328, 520119, 577910, 693492, 866865, 1040238, 1155820, 1386984, 1733730, 2080476, 2311640, 2600595, 3467460, 4160952, 5201190, 6934920, 10402380, 20804760]

約数ペア:

[(1, 20804760), (2, 10402380), (3, 6934920), (4, 5201190), (5, 4160952), (6, 3467460), (8, 2600595), (9, 2311640), (10, 2080476), (12, 1733730), (15, 1386984), (18, 1155820), (20, 1040238), (24, 866865), (30, 693492), (36, 577910), (40, 520119), (45, 462328), (60, 346746), (72, 288955), (90, 231164), (120, 173373), (180, 115582), (360, 57791)]