18987720

素因数分解:

$2^3\times 3^1\times 5^1\times {\mathrm{158231}}^1$

素因数の和:158245

約数の個数: 32

約数和(自身を含む): 56963520

約数和(自身を除く): 37975800

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 20, 24, 30, 40, 60, 120, 158231, 316462, 474693, 632924, 791155, 949386, 1265848, 1582310, 1898772, 2373465, 3164620, 3797544, 4746930, 6329240, 9493860, 18987720]

約数ペア:

[(1, 18987720), (2, 9493860), (3, 6329240), (4, 4746930), (5, 3797544), (6, 3164620), (8, 2373465), (10, 1898772), (12, 1582310), (15, 1265848), (20, 949386), (24, 791155), (30, 632924), (40, 474693), (60, 316462), (120, 158231)]