13142450

素因数分解:

$2^1\times 5^2\times {\mathrm{31}}^1\times {\mathrm{61}}^1\times {\mathrm{139}}^1$

素因数の和:243

約数の個数: 48

約数和(自身を含む): 25831680

約数和(自身を除く): 12689230

約数列:

[1, 2, 5, 10, 25, 31, 50, 61, 62, 122, 139, 155, 278, 305, 310, 610, 695, 775, 1390, 1525, 1550, 1891, 3050, 3475, 3782, 4309, 6950, 8479, 8618, 9455, 16958, 18910, 21545, 42395, 43090, 47275, 84790, 94550, 107725, 211975, 215450, 262849, 423950, 525698, 1314245, 2628490, 6571225, 13142450]

約数ペア:

[(1, 13142450), (2, 6571225), (5, 2628490), (10, 1314245), (25, 525698), (31, 423950), (50, 262849), (61, 215450), (62, 211975), (122, 107725), (139, 94550), (155, 84790), (278, 47275), (305, 43090), (310, 42395), (610, 21545), (695, 18910), (775, 16958), (1390, 9455), (1525, 8618), (1550, 8479), (1891, 6950), (3050, 4309), (3475, 3782)]