80478860

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{52259}}^1$

素因数の和:52286

約数の個数: 48

約数和(自身を含む): 210712320

約数和(自身を除く): 130233460

約数列:

[1, 2, 4, 5, 7, 10, 11, 14, 20, 22, 28, 35, 44, 55, 70, 77, 110, 140, 154, 220, 308, 385, 770, 1540, 52259, 104518, 209036, 261295, 365813, 522590, 574849, 731626, 1045180, 1149698, 1463252, 1829065, 2299396, 2874245, 3658130, 4023943, 5748490, 7316260, 8047886, 11496980, 16095772, 20119715, 40239430, 80478860]

約数ペア:

[(1, 80478860), (2, 40239430), (4, 20119715), (5, 16095772), (7, 11496980), (10, 8047886), (11, 7316260), (14, 5748490), (20, 4023943), (22, 3658130), (28, 2874245), (35, 2299396), (44, 1829065), (55, 1463252), (70, 1149698), (77, 1045180), (110, 731626), (140, 574849), (154, 522590), (220, 365813), (308, 261295), (385, 209036), (770, 104518), (1540, 52259)]