81217080

素因数分解:

$2^3\times 3^4\times 5^1\times 7^1\times {\mathrm{3581}}^1$

素因数の和:3611

約数の個数: 160

約数和(自身を含む): 312063840

約数和(自身を除く): 230846760

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 12, 14, 15, 18, 20, 21, 24, 27, 28, 30, 35, 36, 40, 42, 45, 54, 56, 60, 63, 70, 72, 81, 84, 90, 105, 108, 120, 126, 135, 140, 162, 168, 180, 189, 210, 216, 252, 270, 280, 315, 324, 360, 378, 405, 420, 504, 540, 567, 630, 648, 756, 810, 840, 945, 1080, 1134, 1260, 1512, 1620, 1890, 2268, 2520, 2835, 3240, 3581, 3780, 4536, 5670, 7162, 7560, 10743, 11340, 14324, 17905, 21486, 22680, 25067, 28648, 32229, 35810, 42972, 50134, 53715, 64458, 71620, 75201, 85944, 96687, 100268, 107430, 125335, 128916, 143240, 150402, 161145, 193374, 200536, 214860, 225603, 250670, 257832, 290061, 300804, 322290, 376005, 386748, 429720, 451206, 483435, 501340, 580122, 601608, 644580, 676809, 752010, 773496, 902412, 966870, 1002680, 1128015, 1160244, 1289160, 1353618, 1450305, 1504020, 1804824, 1933740, 2030427, 2256030, 2320488, 2707236, 2900610, 3008040, 3384045, 3867480, 4060854, 4512060, 5414472, 5801220, 6768090, 8121708, 9024120, 10152135, 11602440, 13536180, 16243416, 20304270, 27072360, 40608540, 81217080]

約数ペア:

[(1, 81217080), (2, 40608540), (3, 27072360), (4, 20304270), (5, 16243416), (6, 13536180), (7, 11602440), (8, 10152135), (9, 9024120), (10, 8121708), (12, 6768090), (14, 5801220), (15, 5414472), (18, 4512060), (20, 4060854), (21, 3867480), (24, 3384045), (27, 3008040), (28, 2900610), (30, 2707236), (35, 2320488), (36, 2256030), (40, 2030427), (42, 1933740), (45, 1804824), (54, 1504020), (56, 1450305), (60, 1353618), (63, 1289160), (70, 1160244), (72, 1128015), (81, 1002680), (84, 966870), (90, 902412), (105, 773496), (108, 752010), (120, 676809), (126, 644580), (135, 601608), (140, 580122), (162, 501340), (168, 483435), (180, 451206), (189, 429720), (210, 386748), (216, 376005), (252, 322290), (270, 300804), (280, 290061), (315, 257832), (324, 250670), (360, 225603), (378, 214860), (405, 200536), (420, 193374), (504, 161145), (540, 150402), (567, 143240), (630, 128916), (648, 125335), (756, 107430), (810, 100268), (840, 96687), (945, 85944), (1080, 75201), (1134, 71620), (1260, 64458), (1512, 53715), (1620, 50134), (1890, 42972), (2268, 35810), (2520, 32229), (2835, 28648), (3240, 25067), (3581, 22680), (3780, 21486), (4536, 17905), (5670, 14324), (7162, 11340), (7560, 10743)]