1680016

素因数分解:

$2^4\times {\mathrm{13}}^1\times {\mathrm{41}}^1\times {\mathrm{197}}^1$

素因数の和:259

約数の個数: 40

約数和(自身を含む): 3609144

約数和(自身を除く): 1929128

約数列:

[1, 2, 4, 8, 13, 16, 26, 41, 52, 82, 104, 164, 197, 208, 328, 394, 533, 656, 788, 1066, 1576, 2132, 2561, 3152, 4264, 5122, 8077, 8528, 10244, 16154, 20488, 32308, 40976, 64616, 105001, 129232, 210002, 420004, 840008, 1680016]

約数ペア:

[(1, 1680016), (2, 840008), (4, 420004), (8, 210002), (13, 129232), (16, 105001), (26, 64616), (41, 40976), (52, 32308), (82, 20488), (104, 16154), (164, 10244), (197, 8528), (208, 8077), (328, 5122), (394, 4264), (533, 3152), (656, 2561), (788, 2132), (1066, 1576)]