206990370

素因数分解:

$2^1\times 3^3\times 5^1\times {\mathrm{19}}^1\times {\mathrm{157}}^1\times {\mathrm{257}}^1$

素因数の和:449

約数の個数: 128

約数和(自身を含む): 587001600

約数和(自身を除く): 380011230

約数列:

[1, 2, 3, 5, 6, 9, 10, 15, 18, 19, 27, 30, 38, 45, 54, 57, 90, 95, 114, 135, 157, 171, 190, 257, 270, 285, 314, 342, 471, 513, 514, 570, 771, 785, 855, 942, 1026, 1285, 1413, 1542, 1570, 1710, 2313, 2355, 2565, 2570, 2826, 2983, 3855, 4239, 4626, 4710, 4883, 5130, 5966, 6939, 7065, 7710, 8478, 8949, 9766, 11565, 13878, 14130, 14649, 14915, 17898, 21195, 23130, 24415, 26847, 29298, 29830, 34695, 40349, 42390, 43947, 44745, 48830, 53694, 69390, 73245, 80541, 80698, 87894, 89490, 121047, 131841, 134235, 146490, 161082, 201745, 219735, 242094, 263682, 268470, 363141, 402705, 403490, 439470, 605235, 659205, 726282, 766631, 805410, 1089423, 1210470, 1318410, 1533262, 1815705, 2178846, 2299893, 3631410, 3833155, 4599786, 5447115, 6899679, 7666310, 10894230, 11499465, 13799358, 20699037, 22998930, 34498395, 41398074, 68996790, 103495185, 206990370]

約数ペア:

[(1, 206990370), (2, 103495185), (3, 68996790), (5, 41398074), (6, 34498395), (9, 22998930), (10, 20699037), (15, 13799358), (18, 11499465), (19, 10894230), (27, 7666310), (30, 6899679), (38, 5447115), (45, 4599786), (54, 3833155), (57, 3631410), (90, 2299893), (95, 2178846), (114, 1815705), (135, 1533262), (157, 1318410), (171, 1210470), (190, 1089423), (257, 805410), (270, 766631), (285, 726282), (314, 659205), (342, 605235), (471, 439470), (513, 403490), (514, 402705), (570, 363141), (771, 268470), (785, 263682), (855, 242094), (942, 219735), (1026, 201745), (1285, 161082), (1413, 146490), (1542, 134235), (1570, 131841), (1710, 121047), (2313, 89490), (2355, 87894), (2565, 80698), (2570, 80541), (2826, 73245), (2983, 69390), (3855, 53694), (4239, 48830), (4626, 44745), (4710, 43947), (4883, 42390), (5130, 40349), (5966, 34695), (6939, 29830), (7065, 29298), (7710, 26847), (8478, 24415), (8949, 23130), (9766, 21195), (11565, 17898), (13878, 14915), (14130, 14649)]