20162640980

素因数分解:

$2^2\times 5^1\times {\mathrm{67}}^1\times {\mathrm{2549}}^1\times {\mathrm{5903}}^1$

素因数の和:8528

約数の個数: 48

約数和(自身を含む): 42997651200

約数和(自身を除く): 22835010220

約数列:

[1, 2, 4, 5, 10, 20, 67, 134, 268, 335, 670, 1340, 2549, 5098, 5903, 10196, 11806, 12745, 23612, 25490, 29515, 50980, 59030, 118060, 170783, 341566, 395501, 683132, 791002, 853915, 1582004, 1707830, 1977505, 3415660, 3955010, 7910020, 15046747, 30093494, 60186988, 75233735, 150467470, 300934940, 1008132049, 2016264098, 4032528196, 5040660245, 10081320490, 20162640980]

約数ペア:

[(1, 20162640980), (2, 10081320490), (4, 5040660245), (5, 4032528196), (10, 2016264098), (20, 1008132049), (67, 300934940), (134, 150467470), (268, 75233735), (335, 60186988), (670, 30093494), (1340, 15046747), (2549, 7910020), (5098, 3955010), (5903, 3415660), (10196, 1977505), (11806, 1707830), (12745, 1582004), (23612, 853915), (25490, 791002), (29515, 683132), (50980, 395501), (59030, 341566), (118060, 170783)]