20522060

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{4643}}^1$

素因数の和:4682

約数の個数: 48

約数和(自身を含む): 49152096

約数和(自身を除く): 28630036

約数列:

[1, 2, 4, 5, 10, 13, 17, 20, 26, 34, 52, 65, 68, 85, 130, 170, 221, 260, 340, 442, 884, 1105, 2210, 4420, 4643, 9286, 18572, 23215, 46430, 60359, 78931, 92860, 120718, 157862, 241436, 301795, 315724, 394655, 603590, 789310, 1026103, 1207180, 1578620, 2052206, 4104412, 5130515, 10261030, 20522060]

約数ペア:

[(1, 20522060), (2, 10261030), (4, 5130515), (5, 4104412), (10, 2052206), (13, 1578620), (17, 1207180), (20, 1026103), (26, 789310), (34, 603590), (52, 394655), (65, 315724), (68, 301795), (85, 241436), (130, 157862), (170, 120718), (221, 92860), (260, 78931), (340, 60359), (442, 46430), (884, 23215), (1105, 18572), (2210, 9286), (4420, 4643)]