661230

素因数分解:

$2^1\times 3^3\times 5^1\times {\mathrm{31}}^1\times {\mathrm{79}}^1$

素因数の和:126

約数の個数: 64

約数和(自身を含む): 1843200

約数和(自身を除く): 1181970

約数列:

[1, 2, 3, 5, 6, 9, 10, 15, 18, 27, 30, 31, 45, 54, 62, 79, 90, 93, 135, 155, 158, 186, 237, 270, 279, 310, 395, 465, 474, 558, 711, 790, 837, 930, 1185, 1395, 1422, 1674, 2133, 2370, 2449, 2790, 3555, 4185, 4266, 4898, 7110, 7347, 8370, 10665, 12245, 14694, 21330, 22041, 24490, 36735, 44082, 66123, 73470, 110205, 132246, 220410, 330615, 661230]

約数ペア:

[(1, 661230), (2, 330615), (3, 220410), (5, 132246), (6, 110205), (9, 73470), (10, 66123), (15, 44082), (18, 36735), (27, 24490), (30, 22041), (31, 21330), (45, 14694), (54, 12245), (62, 10665), (79, 8370), (90, 7347), (93, 7110), (135, 4898), (155, 4266), (158, 4185), (186, 3555), (237, 2790), (270, 2449), (279, 2370), (310, 2133), (395, 1674), (465, 1422), (474, 1395), (558, 1185), (711, 930), (790, 837)]