61661480

素因数分解:

$2^3\times 5^1\times {\mathrm{31}}^1\times {\mathrm{49727}}^1$

素因数の和:49769

約数の個数: 32

約数和(自身を含む): 143216640

約数和(自身を除く): 81555160

約数列:

[1, 2, 4, 5, 8, 10, 20, 31, 40, 62, 124, 155, 248, 310, 620, 1240, 49727, 99454, 198908, 248635, 397816, 497270, 994540, 1541537, 1989080, 3083074, 6166148, 7707685, 12332296, 15415370, 30830740, 61661480]

約数ペア:

[(1, 61661480), (2, 30830740), (4, 15415370), (5, 12332296), (8, 7707685), (10, 6166148), (20, 3083074), (31, 1989080), (40, 1541537), (62, 994540), (124, 497270), (155, 397816), (248, 248635), (310, 198908), (620, 99454), (1240, 49727)]