31571720

素因数分解:

$2^3\times 5^1\times {\mathrm{17}}^1\times {\mathrm{29}}^1\times {\mathrm{1601}}^1$

素因数の和:1658

約数の個数: 64

約数和(自身を含む): 77857200

約数和(自身を除く): 46285480

約数列:

[1, 2, 4, 5, 8, 10, 17, 20, 29, 34, 40, 58, 68, 85, 116, 136, 145, 170, 232, 290, 340, 493, 580, 680, 986, 1160, 1601, 1972, 2465, 3202, 3944, 4930, 6404, 8005, 9860, 12808, 16010, 19720, 27217, 32020, 46429, 54434, 64040, 92858, 108868, 136085, 185716, 217736, 232145, 272170, 371432, 464290, 544340, 789293, 928580, 1088680, 1578586, 1857160, 3157172, 3946465, 6314344, 7892930, 15785860, 31571720]

約数ペア:

[(1, 31571720), (2, 15785860), (4, 7892930), (5, 6314344), (8, 3946465), (10, 3157172), (17, 1857160), (20, 1578586), (29, 1088680), (34, 928580), (40, 789293), (58, 544340), (68, 464290), (85, 371432), (116, 272170), (136, 232145), (145, 217736), (170, 185716), (232, 136085), (290, 108868), (340, 92858), (493, 64040), (580, 54434), (680, 46429), (986, 32020), (1160, 27217), (1601, 19720), (1972, 16010), (2465, 12808), (3202, 9860), (3944, 8005), (4930, 6404)]