205385960

素因数分解:

$2^3\times 5^1\times {\mathrm{13}}^1\times {\mathrm{71}}^1\times {\mathrm{5563}}^1$

素因数の和:5658

約数の個数: 64

約数和(自身を含む): 504766080

約数和(自身を除く): 299380120

約数列:

[1, 2, 4, 5, 8, 10, 13, 20, 26, 40, 52, 65, 71, 104, 130, 142, 260, 284, 355, 520, 568, 710, 923, 1420, 1846, 2840, 3692, 4615, 5563, 7384, 9230, 11126, 18460, 22252, 27815, 36920, 44504, 55630, 72319, 111260, 144638, 222520, 289276, 361595, 394973, 578552, 723190, 789946, 1446380, 1579892, 1974865, 2892760, 3159784, 3949730, 5134649, 7899460, 10269298, 15798920, 20538596, 25673245, 41077192, 51346490, 102692980, 205385960]

約数ペア:

[(1, 205385960), (2, 102692980), (4, 51346490), (5, 41077192), (8, 25673245), (10, 20538596), (13, 15798920), (20, 10269298), (26, 7899460), (40, 5134649), (52, 3949730), (65, 3159784), (71, 2892760), (104, 1974865), (130, 1579892), (142, 1446380), (260, 789946), (284, 723190), (355, 578552), (520, 394973), (568, 361595), (710, 289276), (923, 222520), (1420, 144638), (1846, 111260), (2840, 72319), (3692, 55630), (4615, 44504), (5563, 36920), (7384, 27815), (9230, 22252), (11126, 18460)]