261504516

素因数分解:

$2^2\times 3^1\times 7^1\times {\mathrm{13}}^4\times {\mathrm{109}}^1$

素因数の和:175

約数の個数: 120

約数和(自身を含む): 762386240

約数和(自身を除く): 500881724

約数列:

[1, 2, 3, 4, 6, 7, 12, 13, 14, 21, 26, 28, 39, 42, 52, 78, 84, 91, 109, 156, 169, 182, 218, 273, 327, 338, 364, 436, 507, 546, 654, 676, 763, 1014, 1092, 1183, 1308, 1417, 1526, 2028, 2197, 2289, 2366, 2834, 3052, 3549, 4251, 4394, 4578, 4732, 5668, 6591, 7098, 8502, 8788, 9156, 9919, 13182, 14196, 15379, 17004, 18421, 19838, 26364, 28561, 29757, 30758, 36842, 39676, 46137, 55263, 57122, 59514, 61516, 73684, 85683, 92274, 110526, 114244, 119028, 128947, 171366, 184548, 199927, 221052, 239473, 257894, 342732, 386841, 399854, 478946, 515788, 599781, 718419, 773682, 799708, 957892, 1199562, 1436838, 1547364, 1676311, 2399124, 2873676, 3113149, 3352622, 5028933, 6226298, 6705244, 9339447, 10057866, 12452596, 18678894, 20115732, 21792043, 37357788, 43584086, 65376129, 87168172, 130752258, 261504516]

約数ペア:

[(1, 261504516), (2, 130752258), (3, 87168172), (4, 65376129), (6, 43584086), (7, 37357788), (12, 21792043), (13, 20115732), (14, 18678894), (21, 12452596), (26, 10057866), (28, 9339447), (39, 6705244), (42, 6226298), (52, 5028933), (78, 3352622), (84, 3113149), (91, 2873676), (109, 2399124), (156, 1676311), (169, 1547364), (182, 1436838), (218, 1199562), (273, 957892), (327, 799708), (338, 773682), (364, 718419), (436, 599781), (507, 515788), (546, 478946), (654, 399854), (676, 386841), (763, 342732), (1014, 257894), (1092, 239473), (1183, 221052), (1308, 199927), (1417, 184548), (1526, 171366), (2028, 128947), (2197, 119028), (2289, 114244), (2366, 110526), (2834, 92274), (3052, 85683), (3549, 73684), (4251, 61516), (4394, 59514), (4578, 57122), (4732, 55263), (5668, 46137), (6591, 39676), (7098, 36842), (8502, 30758), (8788, 29757), (9156, 28561), (9919, 26364), (13182, 19838), (14196, 18421), (15379, 17004)]