217788240

素因数分解:

$2^4\times 3^1\times 5^1\times {\mathrm{71}}^1\times {\mathrm{12781}}^1$

素因数の和:12868

約数の個数: 80

約数和(自身を含む): 684706176

約数和(自身を除く): 466917936

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 16, 20, 24, 30, 40, 48, 60, 71, 80, 120, 142, 213, 240, 284, 355, 426, 568, 710, 852, 1065, 1136, 1420, 1704, 2130, 2840, 3408, 4260, 5680, 8520, 12781, 17040, 25562, 38343, 51124, 63905, 76686, 102248, 127810, 153372, 191715, 204496, 255620, 306744, 383430, 511240, 613488, 766860, 907451, 1022480, 1533720, 1814902, 2722353, 3067440, 3629804, 4537255, 5444706, 7259608, 9074510, 10889412, 13611765, 14519216, 18149020, 21778824, 27223530, 36298040, 43557648, 54447060, 72596080, 108894120, 217788240]

約数ペア:

[(1, 217788240), (2, 108894120), (3, 72596080), (4, 54447060), (5, 43557648), (6, 36298040), (8, 27223530), (10, 21778824), (12, 18149020), (15, 14519216), (16, 13611765), (20, 10889412), (24, 9074510), (30, 7259608), (40, 5444706), (48, 4537255), (60, 3629804), (71, 3067440), (80, 2722353), (120, 1814902), (142, 1533720), (213, 1022480), (240, 907451), (284, 766860), (355, 613488), (426, 511240), (568, 383430), (710, 306744), (852, 255620), (1065, 204496), (1136, 191715), (1420, 153372), (1704, 127810), (2130, 102248), (2840, 76686), (3408, 63905), (4260, 51124), (5680, 38343), (8520, 25562), (12781, 17040)]