643847580

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{157}}^1\times {\mathrm{22783}}^1$

素因数の和:22955

約数の個数: 72

約数和(自身を含む): 1965530112

約数和(自身を除く): 1321682532

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 30, 36, 45, 60, 90, 157, 180, 314, 471, 628, 785, 942, 1413, 1570, 1884, 2355, 2826, 3140, 4710, 5652, 7065, 9420, 14130, 22783, 28260, 45566, 68349, 91132, 113915, 136698, 205047, 227830, 273396, 341745, 410094, 455660, 683490, 820188, 1025235, 1366980, 2050470, 3576931, 4100940, 7153862, 10730793, 14307724, 17884655, 21461586, 32192379, 35769310, 42923172, 53653965, 64384758, 71538620, 107307930, 128769516, 160961895, 214615860, 321923790, 643847580]

約数ペア:

[(1, 643847580), (2, 321923790), (3, 214615860), (4, 160961895), (5, 128769516), (6, 107307930), (9, 71538620), (10, 64384758), (12, 53653965), (15, 42923172), (18, 35769310), (20, 32192379), (30, 21461586), (36, 17884655), (45, 14307724), (60, 10730793), (90, 7153862), (157, 4100940), (180, 3576931), (314, 2050470), (471, 1366980), (628, 1025235), (785, 820188), (942, 683490), (1413, 455660), (1570, 410094), (1884, 341745), (2355, 273396), (2826, 227830), (3140, 205047), (4710, 136698), (5652, 113915), (7065, 91132), (9420, 68349), (14130, 45566), (22783, 28260)]