72531760

素因数分解:

$2^4\times 5^1\times 7^2\times {\mathrm{18503}}^1$

素因数の和:18530

約数の個数: 60

約数和(自身を含む): 196179408

約数和(自身を除く): 123647648

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 35, 40, 49, 56, 70, 80, 98, 112, 140, 196, 245, 280, 392, 490, 560, 784, 980, 1960, 3920, 18503, 37006, 74012, 92515, 129521, 148024, 185030, 259042, 296048, 370060, 518084, 647605, 740120, 906647, 1036168, 1295210, 1480240, 1813294, 2072336, 2590420, 3626588, 4533235, 5180840, 7253176, 9066470, 10361680, 14506352, 18132940, 36265880, 72531760]

約数ペア:

[(1, 72531760), (2, 36265880), (4, 18132940), (5, 14506352), (7, 10361680), (8, 9066470), (10, 7253176), (14, 5180840), (16, 4533235), (20, 3626588), (28, 2590420), (35, 2072336), (40, 1813294), (49, 1480240), (56, 1295210), (70, 1036168), (80, 906647), (98, 740120), (112, 647605), (140, 518084), (196, 370060), (245, 296048), (280, 259042), (392, 185030), (490, 148024), (560, 129521), (784, 92515), (980, 74012), (1960, 37006), (3920, 18503)]