81347940

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{451933}}^1$

素因数の和:451948

約数の個数: 36

約数和(自身を含む): 246755964

約数和(自身を除く): 165408024

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 30, 36, 45, 60, 90, 180, 451933, 903866, 1355799, 1807732, 2259665, 2711598, 4067397, 4519330, 5423196, 6778995, 8134794, 9038660, 13557990, 16269588, 20336985, 27115980, 40673970, 81347940]

約数ペア:

[(1, 81347940), (2, 40673970), (3, 27115980), (4, 20336985), (5, 16269588), (6, 13557990), (9, 9038660), (10, 8134794), (12, 6778995), (15, 5423196), (18, 4519330), (20, 4067397), (30, 2711598), (36, 2259665), (45, 1807732), (60, 1355799), (90, 903866), (180, 451933)]