25578180

素因数分解:

$2^2\times 3^5\times 5^1\times {\mathrm{19}}^1\times {\mathrm{277}}^1$

素因数の和:320

約数の個数: 144

約数和(自身を含む): 85001280

約数和(自身を除く): 59423100

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 19, 20, 27, 30, 36, 38, 45, 54, 57, 60, 76, 81, 90, 95, 108, 114, 135, 162, 171, 180, 190, 228, 243, 270, 277, 285, 324, 342, 380, 405, 486, 513, 540, 554, 570, 684, 810, 831, 855, 972, 1026, 1108, 1140, 1215, 1385, 1539, 1620, 1662, 1710, 2052, 2430, 2493, 2565, 2770, 3078, 3324, 3420, 4155, 4617, 4860, 4986, 5130, 5263, 5540, 6156, 7479, 7695, 8310, 9234, 9972, 10260, 10526, 12465, 14958, 15390, 15789, 16620, 18468, 21052, 22437, 23085, 24930, 26315, 29916, 30780, 31578, 37395, 44874, 46170, 47367, 49860, 52630, 63156, 67311, 74790, 78945, 89748, 92340, 94734, 105260, 112185, 134622, 142101, 149580, 157890, 189468, 224370, 236835, 269244, 284202, 315780, 336555, 426303, 448740, 473670, 568404, 673110, 710505, 852606, 947340, 1278909, 1346220, 1421010, 1705212, 2131515, 2557818, 2842020, 4263030, 5115636, 6394545, 8526060, 12789090, 25578180]

約数ペア:

[(1, 25578180), (2, 12789090), (3, 8526060), (4, 6394545), (5, 5115636), (6, 4263030), (9, 2842020), (10, 2557818), (12, 2131515), (15, 1705212), (18, 1421010), (19, 1346220), (20, 1278909), (27, 947340), (30, 852606), (36, 710505), (38, 673110), (45, 568404), (54, 473670), (57, 448740), (60, 426303), (76, 336555), (81, 315780), (90, 284202), (95, 269244), (108, 236835), (114, 224370), (135, 189468), (162, 157890), (171, 149580), (180, 142101), (190, 134622), (228, 112185), (243, 105260), (270, 94734), (277, 92340), (285, 89748), (324, 78945), (342, 74790), (380, 67311), (405, 63156), (486, 52630), (513, 49860), (540, 47367), (554, 46170), (570, 44874), (684, 37395), (810, 31578), (831, 30780), (855, 29916), (972, 26315), (1026, 24930), (1108, 23085), (1140, 22437), (1215, 21052), (1385, 18468), (1539, 16620), (1620, 15789), (1662, 15390), (1710, 14958), (2052, 12465), (2430, 10526), (2493, 10260), (2565, 9972), (2770, 9234), (3078, 8310), (3324, 7695), (3420, 7479), (4155, 6156), (4617, 5540), (4860, 5263), (4986, 5130)]