20457720

素因数分解:

$2^3\times 3^2\times 5^1\times {\mathrm{56827}}^1$

素因数の和:56844

約数の個数: 48

約数和(自身を含む): 66488760

約数和(自身を除く): 46031040

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, 56827, 113654, 170481, 227308, 284135, 340962, 454616, 511443, 568270, 681924, 852405, 1022886, 1136540, 1363848, 1704810, 2045772, 2273080, 2557215, 3409620, 4091544, 5114430, 6819240, 10228860, 20457720]

約数ペア:

[(1, 20457720), (2, 10228860), (3, 6819240), (4, 5114430), (5, 4091544), (6, 3409620), (8, 2557215), (9, 2273080), (10, 2045772), (12, 1704810), (15, 1363848), (18, 1136540), (20, 1022886), (24, 852405), (30, 681924), (36, 568270), (40, 511443), (45, 454616), (60, 340962), (72, 284135), (90, 227308), (120, 170481), (180, 113654), (360, 56827)]