27640840

素因数分解:

$2^3\times 5^1\times {\mathrm{31}}^1\times {\mathrm{22291}}^1$

素因数の和:22333

約数の個数: 32

約数和(自身を含む): 64200960

約数和(自身を除く): 36560120

約数列:

[1, 2, 4, 5, 8, 10, 20, 31, 40, 62, 124, 155, 248, 310, 620, 1240, 22291, 44582, 89164, 111455, 178328, 222910, 445820, 691021, 891640, 1382042, 2764084, 3455105, 5528168, 6910210, 13820420, 27640840]

約数ペア:

[(1, 27640840), (2, 13820420), (4, 6910210), (5, 5528168), (8, 3455105), (10, 2764084), (20, 1382042), (31, 891640), (40, 691021), (62, 445820), (124, 222910), (155, 178328), (248, 111455), (310, 89164), (620, 44582), (1240, 22291)]