51031620

素因数分解:

$2^2\times 3^4\times 5^1\times {\mathrm{17}}^2\times {\mathrm{109}}^1$

素因数の和:164

約数の個数: 180

約数和(自身を含む): 171619140

約数和(自身を除く): 120587520

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 17, 18, 20, 27, 30, 34, 36, 45, 51, 54, 60, 68, 81, 85, 90, 102, 108, 109, 135, 153, 162, 170, 180, 204, 218, 255, 270, 289, 306, 324, 327, 340, 405, 436, 459, 510, 540, 545, 578, 612, 654, 765, 810, 867, 918, 981, 1020, 1090, 1156, 1308, 1377, 1445, 1530, 1620, 1635, 1734, 1836, 1853, 1962, 2180, 2295, 2601, 2754, 2890, 2943, 3060, 3270, 3468, 3706, 3924, 4335, 4590, 4905, 5202, 5508, 5559, 5780, 5886, 6540, 6885, 7412, 7803, 8670, 8829, 9180, 9265, 9810, 10404, 11118, 11772, 13005, 13770, 14715, 15606, 16677, 17340, 17658, 18530, 19620, 22236, 23409, 26010, 27540, 27795, 29430, 31212, 31501, 33354, 35316, 37060, 39015, 44145, 46818, 50031, 52020, 55590, 58860, 63002, 66708, 78030, 83385, 88290, 93636, 94503, 100062, 111180, 117045, 126004, 150093, 156060, 157505, 166770, 176580, 189006, 200124, 234090, 250155, 283509, 300186, 315010, 333540, 378012, 468180, 472515, 500310, 567018, 600372, 630020, 750465, 850527, 945030, 1000620, 1134036, 1417545, 1500930, 1701054, 1890060, 2551581, 2835090, 3001860, 3402108, 4252635, 5103162, 5670180, 8505270, 10206324, 12757905, 17010540, 25515810, 51031620]

約数ペア:

[(1, 51031620), (2, 25515810), (3, 17010540), (4, 12757905), (5, 10206324), (6, 8505270), (9, 5670180), (10, 5103162), (12, 4252635), (15, 3402108), (17, 3001860), (18, 2835090), (20, 2551581), (27, 1890060), (30, 1701054), (34, 1500930), (36, 1417545), (45, 1134036), (51, 1000620), (54, 945030), (60, 850527), (68, 750465), (81, 630020), (85, 600372), (90, 567018), (102, 500310), (108, 472515), (109, 468180), (135, 378012), (153, 333540), (162, 315010), (170, 300186), (180, 283509), (204, 250155), (218, 234090), (255, 200124), (270, 189006), (289, 176580), (306, 166770), (324, 157505), (327, 156060), (340, 150093), (405, 126004), (436, 117045), (459, 111180), (510, 100062), (540, 94503), (545, 93636), (578, 88290), (612, 83385), (654, 78030), (765, 66708), (810, 63002), (867, 58860), (918, 55590), (981, 52020), (1020, 50031), (1090, 46818), (1156, 44145), (1308, 39015), (1377, 37060), (1445, 35316), (1530, 33354), (1620, 31501), (1635, 31212), (1734, 29430), (1836, 27795), (1853, 27540), (1962, 26010), (2180, 23409), (2295, 22236), (2601, 19620), (2754, 18530), (2890, 17658), (2943, 17340), (3060, 16677), (3270, 15606), (3468, 14715), (3706, 13770), (3924, 13005), (4335, 11772), (4590, 11118), (4905, 10404), (5202, 9810), (5508, 9265), (5559, 9180), (5780, 8829), (5886, 8670), (6540, 7803), (6885, 7412)]