20615280

素因数分解:

$2^4\times 3^1\times 5^1\times 7^2\times {\mathrm{1753}}^1$

素因数の和:1783

約数の個数: 120

約数和(自身を含む): 74383632

約数和(自身を除く): 53768352

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 10, 12, 14, 15, 16, 20, 21, 24, 28, 30, 35, 40, 42, 48, 49, 56, 60, 70, 80, 84, 98, 105, 112, 120, 140, 147, 168, 196, 210, 240, 245, 280, 294, 336, 392, 420, 490, 560, 588, 735, 784, 840, 980, 1176, 1470, 1680, 1753, 1960, 2352, 2940, 3506, 3920, 5259, 5880, 7012, 8765, 10518, 11760, 12271, 14024, 17530, 21036, 24542, 26295, 28048, 35060, 36813, 42072, 49084, 52590, 61355, 70120, 73626, 84144, 85897, 98168, 105180, 122710, 140240, 147252, 171794, 184065, 196336, 210360, 245420, 257691, 294504, 343588, 368130, 420720, 429485, 490840, 515382, 589008, 687176, 736260, 858970, 981680, 1030764, 1288455, 1374352, 1472520, 1717940, 2061528, 2576910, 2945040, 3435880, 4123056, 5153820, 6871760, 10307640, 20615280]

約数ペア:

[(1, 20615280), (2, 10307640), (3, 6871760), (4, 5153820), (5, 4123056), (6, 3435880), (7, 2945040), (8, 2576910), (10, 2061528), (12, 1717940), (14, 1472520), (15, 1374352), (16, 1288455), (20, 1030764), (21, 981680), (24, 858970), (28, 736260), (30, 687176), (35, 589008), (40, 515382), (42, 490840), (48, 429485), (49, 420720), (56, 368130), (60, 343588), (70, 294504), (80, 257691), (84, 245420), (98, 210360), (105, 196336), (112, 184065), (120, 171794), (140, 147252), (147, 140240), (168, 122710), (196, 105180), (210, 98168), (240, 85897), (245, 84144), (280, 73626), (294, 70120), (336, 61355), (392, 52590), (420, 49084), (490, 42072), (560, 36813), (588, 35060), (735, 28048), (784, 26295), (840, 24542), (980, 21036), (1176, 17530), (1470, 14024), (1680, 12271), (1753, 11760), (1960, 10518), (2352, 8765), (2940, 7012), (3506, 5880), (3920, 5259)]