61691990

素因数分解:

$2^1\times 5^1\times {\mathrm{29}}^1\times {\mathrm{199}}^1\times {\mathrm{1069}}^1$

素因数の和:1304

約数の個数: 32

約数和(自身を含む): 115560000

約数和(自身を除く): 53868010

約数列:

[1, 2, 5, 10, 29, 58, 145, 199, 290, 398, 995, 1069, 1990, 2138, 5345, 5771, 10690, 11542, 28855, 31001, 57710, 62002, 155005, 212731, 310010, 425462, 1063655, 2127310, 6169199, 12338398, 30845995, 61691990]

約数ペア:

[(1, 61691990), (2, 30845995), (5, 12338398), (10, 6169199), (29, 2127310), (58, 1063655), (145, 425462), (199, 310010), (290, 212731), (398, 155005), (995, 62002), (1069, 57710), (1990, 31001), (2138, 28855), (5345, 11542), (5771, 10690)]