81830140

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{577}}^1\times {\mathrm{1013}}^1$

素因数の和:1606

約数の個数: 48

約数和(自身を含む): 196926912

約数和(自身を除く): 115096772

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 140, 577, 1013, 1154, 2026, 2308, 2885, 4039, 4052, 5065, 5770, 7091, 8078, 10130, 11540, 14182, 16156, 20195, 20260, 28364, 35455, 40390, 70910, 80780, 141820, 584501, 1169002, 2338004, 2922505, 4091507, 5845010, 8183014, 11690020, 16366028, 20457535, 40915070, 81830140]

約数ペア:

[(1, 81830140), (2, 40915070), (4, 20457535), (5, 16366028), (7, 11690020), (10, 8183014), (14, 5845010), (20, 4091507), (28, 2922505), (35, 2338004), (70, 1169002), (140, 584501), (577, 141820), (1013, 80780), (1154, 70910), (2026, 40390), (2308, 35455), (2885, 28364), (4039, 20260), (4052, 20195), (5065, 16156), (5770, 14182), (7091, 11540), (8078, 10130)]