205905240

素因数分解:

$2^3\times 3^4\times 5^1\times {\mathrm{103}}^1\times {\mathrm{617}}^1$

素因数の和:743

約数の個数: 160

約数和(自身を含む): 699922080

約数和(自身を除く): 494016840

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 18, 20, 24, 27, 30, 36, 40, 45, 54, 60, 72, 81, 90, 103, 108, 120, 135, 162, 180, 206, 216, 270, 309, 324, 360, 405, 412, 515, 540, 617, 618, 648, 810, 824, 927, 1030, 1080, 1234, 1236, 1545, 1620, 1851, 1854, 2060, 2468, 2472, 2781, 3085, 3090, 3240, 3702, 3708, 4120, 4635, 4936, 5553, 5562, 6170, 6180, 7404, 7416, 8343, 9255, 9270, 11106, 11124, 12340, 12360, 13905, 14808, 16659, 16686, 18510, 18540, 22212, 22248, 24680, 27765, 27810, 33318, 33372, 37020, 37080, 41715, 44424, 49977, 55530, 55620, 63551, 66636, 66744, 74040, 83295, 83430, 99954, 111060, 111240, 127102, 133272, 166590, 166860, 190653, 199908, 222120, 249885, 254204, 317755, 333180, 333720, 381306, 399816, 499770, 508408, 571959, 635510, 666360, 762612, 953265, 999540, 1143918, 1271020, 1525224, 1715877, 1906530, 1999080, 2287836, 2542040, 2859795, 3431754, 3813060, 4575672, 5147631, 5719590, 6863508, 7626120, 8579385, 10295262, 11439180, 13727016, 17158770, 20590524, 22878360, 25738155, 34317540, 41181048, 51476310, 68635080, 102952620, 205905240]

約数ペア:

[(1, 205905240), (2, 102952620), (3, 68635080), (4, 51476310), (5, 41181048), (6, 34317540), (8, 25738155), (9, 22878360), (10, 20590524), (12, 17158770), (15, 13727016), (18, 11439180), (20, 10295262), (24, 8579385), (27, 7626120), (30, 6863508), (36, 5719590), (40, 5147631), (45, 4575672), (54, 3813060), (60, 3431754), (72, 2859795), (81, 2542040), (90, 2287836), (103, 1999080), (108, 1906530), (120, 1715877), (135, 1525224), (162, 1271020), (180, 1143918), (206, 999540), (216, 953265), (270, 762612), (309, 666360), (324, 635510), (360, 571959), (405, 508408), (412, 499770), (515, 399816), (540, 381306), (617, 333720), (618, 333180), (648, 317755), (810, 254204), (824, 249885), (927, 222120), (1030, 199908), (1080, 190653), (1234, 166860), (1236, 166590), (1545, 133272), (1620, 127102), (1851, 111240), (1854, 111060), (2060, 99954), (2468, 83430), (2472, 83295), (2781, 74040), (3085, 66744), (3090, 66636), (3240, 63551), (3702, 55620), (3708, 55530), (4120, 49977), (4635, 44424), (4936, 41715), (5553, 37080), (5562, 37020), (6170, 33372), (6180, 33318), (7404, 27810), (7416, 27765), (8343, 24680), (9255, 22248), (9270, 22212), (11106, 18540), (11124, 18510), (12340, 16686), (12360, 16659), (13905, 14808)]