7920380

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{41}}^1\times {\mathrm{743}}^1$

素因数の和:806

約数の個数: 48

約数和(自身を含む): 18373824

約数和(自身を除く): 10453444

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 41, 52, 65, 82, 130, 164, 205, 260, 410, 533, 743, 820, 1066, 1486, 2132, 2665, 2972, 3715, 5330, 7430, 9659, 10660, 14860, 19318, 30463, 38636, 48295, 60926, 96590, 121852, 152315, 193180, 304630, 396019, 609260, 792038, 1584076, 1980095, 3960190, 7920380]

約数ペア:

[(1, 7920380), (2, 3960190), (4, 1980095), (5, 1584076), (10, 792038), (13, 609260), (20, 396019), (26, 304630), (41, 193180), (52, 152315), (65, 121852), (82, 96590), (130, 60926), (164, 48295), (205, 38636), (260, 30463), (410, 19318), (533, 14860), (743, 10660), (820, 9659), (1066, 7430), (1486, 5330), (2132, 3715), (2665, 2972)]