280258740

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{19}}^3\times {\mathrm{227}}^1$

素因数の和:299

約数の個数: 144

約数和(自身を含む): 901293120

約数和(自身を除く): 621034380

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 19, 20, 30, 36, 38, 45, 57, 60, 76, 90, 95, 114, 171, 180, 190, 227, 228, 285, 342, 361, 380, 454, 570, 681, 684, 722, 855, 908, 1083, 1135, 1140, 1362, 1444, 1710, 1805, 2043, 2166, 2270, 2724, 3249, 3405, 3420, 3610, 4086, 4313, 4332, 4540, 5415, 6498, 6810, 6859, 7220, 8172, 8626, 10215, 10830, 12939, 12996, 13620, 13718, 16245, 17252, 20430, 20577, 21565, 21660, 25878, 27436, 32490, 34295, 38817, 40860, 41154, 43130, 51756, 61731, 64695, 64980, 68590, 77634, 81947, 82308, 86260, 102885, 123462, 129390, 137180, 155268, 163894, 194085, 205770, 245841, 246924, 258780, 308655, 327788, 388170, 409735, 411540, 491682, 617310, 737523, 776340, 819470, 983364, 1229205, 1234620, 1475046, 1556993, 1638940, 2458410, 2950092, 3113986, 3687615, 4670979, 4916820, 6227972, 7375230, 7784965, 9341958, 14012937, 14750460, 15569930, 18683916, 23354895, 28025874, 31139860, 46709790, 56051748, 70064685, 93419580, 140129370, 280258740]

約数ペア:

[(1, 280258740), (2, 140129370), (3, 93419580), (4, 70064685), (5, 56051748), (6, 46709790), (9, 31139860), (10, 28025874), (12, 23354895), (15, 18683916), (18, 15569930), (19, 14750460), (20, 14012937), (30, 9341958), (36, 7784965), (38, 7375230), (45, 6227972), (57, 4916820), (60, 4670979), (76, 3687615), (90, 3113986), (95, 2950092), (114, 2458410), (171, 1638940), (180, 1556993), (190, 1475046), (227, 1234620), (228, 1229205), (285, 983364), (342, 819470), (361, 776340), (380, 737523), (454, 617310), (570, 491682), (681, 411540), (684, 409735), (722, 388170), (855, 327788), (908, 308655), (1083, 258780), (1135, 246924), (1140, 245841), (1362, 205770), (1444, 194085), (1710, 163894), (1805, 155268), (2043, 137180), (2166, 129390), (2270, 123462), (2724, 102885), (3249, 86260), (3405, 82308), (3420, 81947), (3610, 77634), (4086, 68590), (4313, 64980), (4332, 64695), (4540, 61731), (5415, 51756), (6498, 43130), (6810, 41154), (6859, 40860), (7220, 38817), (8172, 34295), (8626, 32490), (10215, 27436), (10830, 25878), (12939, 21660), (12996, 21565), (13620, 20577), (13718, 20430), (16245, 17252)]