80396120

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{29}}^1\times {\mathrm{9901}}^1$

素因数の和:9948

約数の個数: 64

約数和(自身を含む): 213883200

約数和(自身を除く): 133487080

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 29, 35, 40, 56, 58, 70, 116, 140, 145, 203, 232, 280, 290, 406, 580, 812, 1015, 1160, 1624, 2030, 4060, 8120, 9901, 19802, 39604, 49505, 69307, 79208, 99010, 138614, 198020, 277228, 287129, 346535, 396040, 554456, 574258, 693070, 1148516, 1386140, 1435645, 2009903, 2297032, 2772280, 2871290, 4019806, 5742580, 8039612, 10049515, 11485160, 16079224, 20099030, 40198060, 80396120]

約数ペア:

[(1, 80396120), (2, 40198060), (4, 20099030), (5, 16079224), (7, 11485160), (8, 10049515), (10, 8039612), (14, 5742580), (20, 4019806), (28, 2871290), (29, 2772280), (35, 2297032), (40, 2009903), (56, 1435645), (58, 1386140), (70, 1148516), (116, 693070), (140, 574258), (145, 554456), (203, 396040), (232, 346535), (280, 287129), (290, 277228), (406, 198020), (580, 138614), (812, 99010), (1015, 79208), (1160, 69307), (1624, 49505), (2030, 39604), (4060, 19802), (8120, 9901)]