289499620

素因数分解:

$2^2\times 5^1\times {\mathrm{23}}^1\times {\mathrm{761}}^1\times {\mathrm{827}}^1$

素因数の和:1620

約数の個数: 48

約数和(自身を含む): 635983488

約数和(自身を除く): 346483868

約数列:

[1, 2, 4, 5, 10, 20, 23, 46, 92, 115, 230, 460, 761, 827, 1522, 1654, 3044, 3308, 3805, 4135, 7610, 8270, 15220, 16540, 17503, 19021, 35006, 38042, 70012, 76084, 87515, 95105, 175030, 190210, 350060, 380420, 629347, 1258694, 2517388, 3146735, 6293470, 12586940, 14474981, 28949962, 57899924, 72374905, 144749810, 289499620]

約数ペア:

[(1, 289499620), (2, 144749810), (4, 72374905), (5, 57899924), (10, 28949962), (20, 14474981), (23, 12586940), (46, 6293470), (92, 3146735), (115, 2517388), (230, 1258694), (460, 629347), (761, 380420), (827, 350060), (1522, 190210), (1654, 175030), (3044, 95105), (3308, 87515), (3805, 76084), (4135, 70012), (7610, 38042), (8270, 35006), (15220, 19021), (16540, 17503)]