21735280

素因数分解:

$2^4\times 5^1\times 7^1\times {\mathrm{37}}^1\times {\mathrm{1049}}^1$

素因数の和:1106

約数の個数: 80

約数和(自身を含む): 59371200

約数和(自身を除く): 37635920

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 35, 37, 40, 56, 70, 74, 80, 112, 140, 148, 185, 259, 280, 296, 370, 518, 560, 592, 740, 1036, 1049, 1295, 1480, 2072, 2098, 2590, 2960, 4144, 4196, 5180, 5245, 7343, 8392, 10360, 10490, 14686, 16784, 20720, 20980, 29372, 36715, 38813, 41960, 58744, 73430, 77626, 83920, 117488, 146860, 155252, 194065, 271691, 293720, 310504, 388130, 543382, 587440, 621008, 776260, 1086764, 1358455, 1552520, 2173528, 2716910, 3105040, 4347056, 5433820, 10867640, 21735280]

約数ペア:

[(1, 21735280), (2, 10867640), (4, 5433820), (5, 4347056), (7, 3105040), (8, 2716910), (10, 2173528), (14, 1552520), (16, 1358455), (20, 1086764), (28, 776260), (35, 621008), (37, 587440), (40, 543382), (56, 388130), (70, 310504), (74, 293720), (80, 271691), (112, 194065), (140, 155252), (148, 146860), (185, 117488), (259, 83920), (280, 77626), (296, 73430), (370, 58744), (518, 41960), (560, 38813), (592, 36715), (740, 29372), (1036, 20980), (1049, 20720), (1295, 16784), (1480, 14686), (2072, 10490), (2098, 10360), (2590, 8392), (2960, 7343), (4144, 5245), (4196, 5180)]