2181567160

素因数分解:

$2^3\times 5^1\times {\mathrm{17}}^1\times {\mathrm{43}}^1\times {\mathrm{74609}}^1$

素因数の和:74680

約数の個数: 64

約数和(自身を含む): 5318200800

約数和(自身を除く): 3136633640

約数列:

[1, 2, 4, 5, 8, 10, 17, 20, 34, 40, 43, 68, 85, 86, 136, 170, 172, 215, 340, 344, 430, 680, 731, 860, 1462, 1720, 2924, 3655, 5848, 7310, 14620, 29240, 74609, 149218, 298436, 373045, 596872, 746090, 1268353, 1492180, 2536706, 2984360, 3208187, 5073412, 6341765, 6416374, 10146824, 12683530, 12832748, 16040935, 25367060, 25665496, 32081870, 50734120, 54539179, 64163740, 109078358, 128327480, 218156716, 272695895, 436313432, 545391790, 1090783580, 2181567160]

約数ペア:

[(1, 2181567160), (2, 1090783580), (4, 545391790), (5, 436313432), (8, 272695895), (10, 218156716), (17, 128327480), (20, 109078358), (34, 64163740), (40, 54539179), (43, 50734120), (68, 32081870), (85, 25665496), (86, 25367060), (136, 16040935), (170, 12832748), (172, 12683530), (215, 10146824), (340, 6416374), (344, 6341765), (430, 5073412), (680, 3208187), (731, 2984360), (860, 2536706), (1462, 1492180), (1720, 1268353), (2924, 746090), (3655, 596872), (5848, 373045), (7310, 298436), (14620, 149218), (29240, 74609)]