81272580

素因数分解:

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

素因数の和:198

約数の個数: 144

約数和(自身を含む): 249627840

約数和(自身を除く): 168355260

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 15, 17, 20, 30, 34, 43, 51, 60, 68, 85, 86, 102, 109, 129, 170, 172, 204, 215, 218, 255, 258, 289, 327, 340, 430, 436, 510, 516, 545, 578, 645, 654, 731, 860, 867, 1020, 1090, 1156, 1290, 1308, 1445, 1462, 1635, 1734, 1853, 2180, 2193, 2580, 2890, 2924, 3270, 3468, 3655, 3706, 4335, 4386, 4687, 5559, 5780, 6540, 7310, 7412, 8670, 8772, 9265, 9374, 10965, 11118, 12427, 14061, 14620, 17340, 18530, 18748, 21930, 22236, 23435, 24854, 27795, 28122, 31501, 37060, 37281, 43860, 46870, 49708, 55590, 56244, 62135, 63002, 70305, 74562, 79679, 93740, 94503, 111180, 124270, 126004, 140610, 149124, 157505, 159358, 186405, 189006, 239037, 248540, 281220, 315010, 318716, 372810, 378012, 398395, 472515, 478074, 630020, 745620, 796790, 945030, 956148, 1195185, 1354543, 1593580, 1890060, 2390370, 2709086, 4063629, 4780740, 5418172, 6772715, 8127258, 13545430, 16254516, 20318145, 27090860, 40636290, 81272580]

約数ペア:

[(1, 81272580), (2, 40636290), (3, 27090860), (4, 20318145), (5, 16254516), (6, 13545430), (10, 8127258), (12, 6772715), (15, 5418172), (17, 4780740), (20, 4063629), (30, 2709086), (34, 2390370), (43, 1890060), (51, 1593580), (60, 1354543), (68, 1195185), (85, 956148), (86, 945030), (102, 796790), (109, 745620), (129, 630020), (170, 478074), (172, 472515), (204, 398395), (215, 378012), (218, 372810), (255, 318716), (258, 315010), (289, 281220), (327, 248540), (340, 239037), (430, 189006), (436, 186405), (510, 159358), (516, 157505), (545, 149124), (578, 140610), (645, 126004), (654, 124270), (731, 111180), (860, 94503), (867, 93740), (1020, 79679), (1090, 74562), (1156, 70305), (1290, 63002), (1308, 62135), (1445, 56244), (1462, 55590), (1635, 49708), (1734, 46870), (1853, 43860), (2180, 37281), (2193, 37060), (2580, 31501), (2890, 28122), (2924, 27795), (3270, 24854), (3468, 23435), (3655, 22236), (3706, 21930), (4335, 18748), (4386, 18530), (4687, 17340), (5559, 14620), (5780, 14061), (6540, 12427), (7310, 11118), (7412, 10965), (8670, 9374), (8772, 9265)]