66973840

素因数分解:

$2^4\times 5^1\times {\mathrm{439}}^1\times {\mathrm{1907}}^1$

素因数の和:2359

約数の個数: 40

約数和(自身を含む): 156150720

約数和(自身を除く): 89176880

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 439, 878, 1756, 1907, 2195, 3512, 3814, 4390, 7024, 7628, 8780, 9535, 15256, 17560, 19070, 30512, 35120, 38140, 76280, 152560, 837173, 1674346, 3348692, 4185865, 6697384, 8371730, 13394768, 16743460, 33486920, 66973840]

約数ペア:

[(1, 66973840), (2, 33486920), (4, 16743460), (5, 13394768), (8, 8371730), (10, 6697384), (16, 4185865), (20, 3348692), (40, 1674346), (80, 837173), (439, 152560), (878, 76280), (1756, 38140), (1907, 35120), (2195, 30512), (3512, 19070), (3814, 17560), (4390, 15256), (7024, 9535), (7628, 8780)]