205509720

素因数分解:

$2^3\times 3^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{103}}^1\times {\mathrm{1279}}^1$

素因数の和:1409

約数の個数: 128

約数和(自身を含む): 670924800

約数和(自身を除く): 465415080

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 13, 15, 20, 24, 26, 30, 39, 40, 52, 60, 65, 78, 103, 104, 120, 130, 156, 195, 206, 260, 309, 312, 390, 412, 515, 520, 618, 780, 824, 1030, 1236, 1279, 1339, 1545, 1560, 2060, 2472, 2558, 2678, 3090, 3837, 4017, 4120, 5116, 5356, 6180, 6395, 6695, 7674, 8034, 10232, 10712, 12360, 12790, 13390, 15348, 16068, 16627, 19185, 20085, 25580, 26780, 30696, 32136, 33254, 38370, 40170, 49881, 51160, 53560, 66508, 76740, 80340, 83135, 99762, 131737, 133016, 153480, 160680, 166270, 199524, 249405, 263474, 332540, 395211, 399048, 498810, 526948, 658685, 665080, 790422, 997620, 1053896, 1317370, 1580844, 1712581, 1976055, 1995240, 2634740, 3161688, 3425162, 3952110, 5137743, 5269480, 6850324, 7904220, 8562905, 10275486, 13700648, 15808440, 17125810, 20550972, 25688715, 34251620, 41101944, 51377430, 68503240, 102754860, 205509720]

約数ペア:

[(1, 205509720), (2, 102754860), (3, 68503240), (4, 51377430), (5, 41101944), (6, 34251620), (8, 25688715), (10, 20550972), (12, 17125810), (13, 15808440), (15, 13700648), (20, 10275486), (24, 8562905), (26, 7904220), (30, 6850324), (39, 5269480), (40, 5137743), (52, 3952110), (60, 3425162), (65, 3161688), (78, 2634740), (103, 1995240), (104, 1976055), (120, 1712581), (130, 1580844), (156, 1317370), (195, 1053896), (206, 997620), (260, 790422), (309, 665080), (312, 658685), (390, 526948), (412, 498810), (515, 399048), (520, 395211), (618, 332540), (780, 263474), (824, 249405), (1030, 199524), (1236, 166270), (1279, 160680), (1339, 153480), (1545, 133016), (1560, 131737), (2060, 99762), (2472, 83135), (2558, 80340), (2678, 76740), (3090, 66508), (3837, 53560), (4017, 51160), (4120, 49881), (5116, 40170), (5356, 38370), (6180, 33254), (6395, 32136), (6695, 30696), (7674, 26780), (8034, 25580), (10232, 20085), (10712, 19185), (12360, 16627), (12790, 16068), (13390, 15348)]