890346520

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{149}}^1\times {\mathrm{21341}}^1$

素因数の和:21508

約数の個数: 64

約数和(自身を含む): 2304936000

約数和(自身を除く): 1414589480

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 56, 70, 140, 149, 280, 298, 596, 745, 1043, 1192, 1490, 2086, 2980, 4172, 5215, 5960, 8344, 10430, 20860, 21341, 41720, 42682, 85364, 106705, 149387, 170728, 213410, 298774, 426820, 597548, 746935, 853640, 1195096, 1493870, 2987740, 3179809, 5975480, 6359618, 12719236, 15899045, 22258663, 25438472, 31798090, 44517326, 63596180, 89034652, 111293315, 127192360, 178069304, 222586630, 445173260, 890346520]

約数ペア:

[(1, 890346520), (2, 445173260), (4, 222586630), (5, 178069304), (7, 127192360), (8, 111293315), (10, 89034652), (14, 63596180), (20, 44517326), (28, 31798090), (35, 25438472), (40, 22258663), (56, 15899045), (70, 12719236), (140, 6359618), (149, 5975480), (280, 3179809), (298, 2987740), (596, 1493870), (745, 1195096), (1043, 853640), (1192, 746935), (1490, 597548), (2086, 426820), (2980, 298774), (4172, 213410), (5215, 170728), (5960, 149387), (8344, 106705), (10430, 85364), (20860, 42682), (21341, 41720)]