291299860

素因数分解:

$2^2\times 5^1\times {\mathrm{79}}^1\times {\mathrm{331}}^1\times {\mathrm{557}}^1$

素因数の和:976

約数の個数: 48

約数和(自身を含む): 622460160

約数和(自身を除く): 331160300

約数列:

[1, 2, 4, 5, 10, 20, 79, 158, 316, 331, 395, 557, 662, 790, 1114, 1324, 1580, 1655, 2228, 2785, 3310, 5570, 6620, 11140, 26149, 44003, 52298, 88006, 104596, 130745, 176012, 184367, 220015, 261490, 368734, 440030, 522980, 737468, 880060, 921835, 1843670, 3687340, 14564993, 29129986, 58259972, 72824965, 145649930, 291299860]

約数ペア:

[(1, 291299860), (2, 145649930), (4, 72824965), (5, 58259972), (10, 29129986), (20, 14564993), (79, 3687340), (158, 1843670), (316, 921835), (331, 880060), (395, 737468), (557, 522980), (662, 440030), (790, 368734), (1114, 261490), (1324, 220015), (1580, 184367), (1655, 176012), (2228, 130745), (2785, 104596), (3310, 88006), (5570, 52298), (6620, 44003), (11140, 26149)]