1306991380

素因数分解:

$2^2\times 5^1\times {\mathrm{19}}^1\times {\mathrm{811}}^1\times {\mathrm{4241}}^1$

素因数の和:5080

約数の個数: 48

約数和(自身を含む): 2893383360

約数和(自身を除く): 1586391980

約数列:

[1, 2, 4, 5, 10, 19, 20, 38, 76, 95, 190, 380, 811, 1622, 3244, 4055, 4241, 8110, 8482, 15409, 16220, 16964, 21205, 30818, 42410, 61636, 77045, 80579, 84820, 154090, 161158, 308180, 322316, 402895, 805790, 1611580, 3439451, 6878902, 13757804, 17197255, 34394510, 65349569, 68789020, 130699138, 261398276, 326747845, 653495690, 1306991380]

約数ペア:

[(1, 1306991380), (2, 653495690), (4, 326747845), (5, 261398276), (10, 130699138), (19, 68789020), (20, 65349569), (38, 34394510), (76, 17197255), (95, 13757804), (190, 6878902), (380, 3439451), (811, 1611580), (1622, 805790), (3244, 402895), (4055, 322316), (4241, 308180), (8110, 161158), (8482, 154090), (15409, 84820), (16220, 80579), (16964, 77045), (21205, 61636), (30818, 42410)]