178145720

素因数分解:

$2^3\times 5^1\times {\mathrm{17}}^1\times {\mathrm{53}}^1\times {\mathrm{4943}}^1$

素因数の和:5024

約数の個数: 64

約数和(自身を含む): 432501120

約数和(自身を除く): 254355400

約数列:

[1, 2, 4, 5, 8, 10, 17, 20, 34, 40, 53, 68, 85, 106, 136, 170, 212, 265, 340, 424, 530, 680, 901, 1060, 1802, 2120, 3604, 4505, 4943, 7208, 9010, 9886, 18020, 19772, 24715, 36040, 39544, 49430, 84031, 98860, 168062, 197720, 261979, 336124, 420155, 523958, 672248, 840310, 1047916, 1309895, 1680620, 2095832, 2619790, 3361240, 4453643, 5239580, 8907286, 10479160, 17814572, 22268215, 35629144, 44536430, 89072860, 178145720]

約数ペア:

[(1, 178145720), (2, 89072860), (4, 44536430), (5, 35629144), (8, 22268215), (10, 17814572), (17, 10479160), (20, 8907286), (34, 5239580), (40, 4453643), (53, 3361240), (68, 2619790), (85, 2095832), (106, 1680620), (136, 1309895), (170, 1047916), (212, 840310), (265, 672248), (340, 523958), (424, 420155), (530, 336124), (680, 261979), (901, 197720), (1060, 168062), (1802, 98860), (2120, 84031), (3604, 49430), (4505, 39544), (4943, 36040), (7208, 24715), (9010, 19772), (9886, 18020)]