201929680

素因数分解:

$2^4\times 5^1\times {\mathrm{71}}^1\times {\mathrm{73}}^1\times {\mathrm{487}}^1$

素因数の和:644

約数の個数: 80

約数和(自身を含む): 483611904

約数和(自身を除く): 281682224

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 71, 73, 80, 142, 146, 284, 292, 355, 365, 487, 568, 584, 710, 730, 974, 1136, 1168, 1420, 1460, 1948, 2435, 2840, 2920, 3896, 4870, 5183, 5680, 5840, 7792, 9740, 10366, 19480, 20732, 25915, 34577, 35551, 38960, 41464, 51830, 69154, 71102, 82928, 103660, 138308, 142204, 172885, 177755, 207320, 276616, 284408, 345770, 355510, 414640, 553232, 568816, 691540, 711020, 1383080, 1422040, 2524121, 2766160, 2844080, 5048242, 10096484, 12620605, 20192968, 25241210, 40385936, 50482420, 100964840, 201929680]

約数ペア:

[(1, 201929680), (2, 100964840), (4, 50482420), (5, 40385936), (8, 25241210), (10, 20192968), (16, 12620605), (20, 10096484), (40, 5048242), (71, 2844080), (73, 2766160), (80, 2524121), (142, 1422040), (146, 1383080), (284, 711020), (292, 691540), (355, 568816), (365, 553232), (487, 414640), (568, 355510), (584, 345770), (710, 284408), (730, 276616), (974, 207320), (1136, 177755), (1168, 172885), (1420, 142204), (1460, 138308), (1948, 103660), (2435, 82928), (2840, 71102), (2920, 69154), (3896, 51830), (4870, 41464), (5183, 38960), (5680, 35551), (5840, 34577), (7792, 25915), (9740, 20732), (10366, 19480)]