81707060

素因数分解:

$2^2\times 5^1\times {\mathrm{61}}^1\times {\mathrm{66973}}^1$

素因数の和:67043

約数の個数: 24

約数和(自身を含む): 174400296

約数和(自身を除く): 92693236

約数列:

[1, 2, 4, 5, 10, 20, 61, 122, 244, 305, 610, 1220, 66973, 133946, 267892, 334865, 669730, 1339460, 4085353, 8170706, 16341412, 20426765, 40853530, 81707060]

約数ペア:

[(1, 81707060), (2, 40853530), (4, 20426765), (5, 16341412), (10, 8170706), (20, 4085353), (61, 1339460), (122, 669730), (244, 334865), (305, 267892), (610, 133946), (1220, 66973)]