54181720

素因数分解:

$2^3\times 5^1\times {\mathrm{17}}^2\times {\mathrm{43}}^1\times {\mathrm{109}}^1$

素因数の和:197

約数の個数: 96

約数和(自身を含む): 133729200

約数和(自身を除く): 79547480

約数列:

[1, 2, 4, 5, 8, 10, 17, 20, 34, 40, 43, 68, 85, 86, 109, 136, 170, 172, 215, 218, 289, 340, 344, 430, 436, 545, 578, 680, 731, 860, 872, 1090, 1156, 1445, 1462, 1720, 1853, 2180, 2312, 2890, 2924, 3655, 3706, 4360, 4687, 5780, 5848, 7310, 7412, 9265, 9374, 11560, 12427, 14620, 14824, 18530, 18748, 23435, 24854, 29240, 31501, 37060, 37496, 46870, 49708, 62135, 63002, 74120, 79679, 93740, 99416, 124270, 126004, 157505, 159358, 187480, 248540, 252008, 315010, 318716, 398395, 497080, 630020, 637432, 796790, 1260040, 1354543, 1593580, 2709086, 3187160, 5418172, 6772715, 10836344, 13545430, 27090860, 54181720]

約数ペア:

[(1, 54181720), (2, 27090860), (4, 13545430), (5, 10836344), (8, 6772715), (10, 5418172), (17, 3187160), (20, 2709086), (34, 1593580), (40, 1354543), (43, 1260040), (68, 796790), (85, 637432), (86, 630020), (109, 497080), (136, 398395), (170, 318716), (172, 315010), (215, 252008), (218, 248540), (289, 187480), (340, 159358), (344, 157505), (430, 126004), (436, 124270), (545, 99416), (578, 93740), (680, 79679), (731, 74120), (860, 63002), (872, 62135), (1090, 49708), (1156, 46870), (1445, 37496), (1462, 37060), (1720, 31501), (1853, 29240), (2180, 24854), (2312, 23435), (2890, 18748), (2924, 18530), (3655, 14824), (3706, 14620), (4360, 12427), (4687, 11560), (5780, 9374), (5848, 9265), (7310, 7412)]