81398040

素因数分解:

$2^3\times 3^1\times 5^1\times {\mathrm{17}}^1\times {\mathrm{39901}}^1$

素因数の和:39932

約数の個数: 64

約数和(自身を含む): 258564960

約数和(自身を除く): 177166920

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 17, 20, 24, 30, 34, 40, 51, 60, 68, 85, 102, 120, 136, 170, 204, 255, 340, 408, 510, 680, 1020, 2040, 39901, 79802, 119703, 159604, 199505, 239406, 319208, 399010, 478812, 598515, 678317, 798020, 957624, 1197030, 1356634, 1596040, 2034951, 2394060, 2713268, 3391585, 4069902, 4788120, 5426536, 6783170, 8139804, 10174755, 13566340, 16279608, 20349510, 27132680, 40699020, 81398040]

約数ペア:

[(1, 81398040), (2, 40699020), (3, 27132680), (4, 20349510), (5, 16279608), (6, 13566340), (8, 10174755), (10, 8139804), (12, 6783170), (15, 5426536), (17, 4788120), (20, 4069902), (24, 3391585), (30, 2713268), (34, 2394060), (40, 2034951), (51, 1596040), (60, 1356634), (68, 1197030), (85, 957624), (102, 798020), (120, 678317), (136, 598515), (170, 478812), (204, 399010), (255, 319208), (340, 239406), (408, 199505), (510, 159604), (680, 119703), (1020, 79802), (2040, 39901)]