16928080

素因数分解:

$2^4\times 5^1\times {\mathrm{13}}^1\times {\mathrm{41}}^1\times {\mathrm{397}}^1$

素因数の和:464

約数の個数: 80

約数和(自身を含む): 43528464

約数和(自身を除く): 26600384

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 20, 26, 40, 41, 52, 65, 80, 82, 104, 130, 164, 205, 208, 260, 328, 397, 410, 520, 533, 656, 794, 820, 1040, 1066, 1588, 1640, 1985, 2132, 2665, 3176, 3280, 3970, 4264, 5161, 5330, 6352, 7940, 8528, 10322, 10660, 15880, 16277, 20644, 21320, 25805, 31760, 32554, 41288, 42640, 51610, 65108, 81385, 82576, 103220, 130216, 162770, 206440, 211601, 260432, 325540, 412880, 423202, 651080, 846404, 1058005, 1302160, 1692808, 2116010, 3385616, 4232020, 8464040, 16928080]

約数ペア:

[(1, 16928080), (2, 8464040), (4, 4232020), (5, 3385616), (8, 2116010), (10, 1692808), (13, 1302160), (16, 1058005), (20, 846404), (26, 651080), (40, 423202), (41, 412880), (52, 325540), (65, 260432), (80, 211601), (82, 206440), (104, 162770), (130, 130216), (164, 103220), (205, 82576), (208, 81385), (260, 65108), (328, 51610), (397, 42640), (410, 41288), (520, 32554), (533, 31760), (656, 25805), (794, 21320), (820, 20644), (1040, 16277), (1066, 15880), (1588, 10660), (1640, 10322), (1985, 8528), (2132, 7940), (2665, 6352), (3176, 5330), (3280, 5161), (3970, 4264)]