64563140

素因数分解:

$2^2\times 5^1\times {\mathrm{19}}^1\times {\mathrm{71}}^1\times {\mathrm{2393}}^1$

素因数の和:2492

約数の個数: 48

約数和(自身を含む): 144789120

約数和(自身を除く): 80225980

約数列:

[1, 2, 4, 5, 10, 19, 20, 38, 71, 76, 95, 142, 190, 284, 355, 380, 710, 1349, 1420, 2393, 2698, 4786, 5396, 6745, 9572, 11965, 13490, 23930, 26980, 45467, 47860, 90934, 169903, 181868, 227335, 339806, 454670, 679612, 849515, 909340, 1699030, 3228157, 3398060, 6456314, 12912628, 16140785, 32281570, 64563140]

約数ペア:

[(1, 64563140), (2, 32281570), (4, 16140785), (5, 12912628), (10, 6456314), (19, 3398060), (20, 3228157), (38, 1699030), (71, 909340), (76, 849515), (95, 679612), (142, 454670), (190, 339806), (284, 227335), (355, 181868), (380, 169903), (710, 90934), (1349, 47860), (1420, 45467), (2393, 26980), (2698, 23930), (4786, 13490), (5396, 11965), (6745, 9572)]