42639560

素因数分解:

$2^3\times 5^1\times {\mathrm{53}}^1\times {\mathrm{20113}}^1$

素因数の和:20177

約数の個数: 32

約数和(自身を含む): 97754040

約数和(自身を除く): 55114480

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 53, 106, 212, 265, 424, 530, 1060, 2120, 20113, 40226, 80452, 100565, 160904, 201130, 402260, 804520, 1065989, 2131978, 4263956, 5329945, 8527912, 10659890, 21319780, 42639560]

約数ペア:

[(1, 42639560), (2, 21319780), (4, 10659890), (5, 8527912), (8, 5329945), (10, 4263956), (20, 2131978), (40, 1065989), (53, 804520), (106, 402260), (212, 201130), (265, 160904), (424, 100565), (530, 80452), (1060, 40226), (2120, 20113)]