856688420

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{29}}^1\times {\mathrm{211007}}^1$

素因数の和:211052

約数の個数: 48

約数和(自身を含む): 2126960640

約数和(自身を除く): 1270272220

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 29, 35, 58, 70, 116, 140, 145, 203, 290, 406, 580, 812, 1015, 2030, 4060, 211007, 422014, 844028, 1055035, 1477049, 2110070, 2954098, 4220140, 5908196, 6119203, 7385245, 12238406, 14770490, 24476812, 29540980, 30596015, 42834421, 61192030, 85668842, 122384060, 171337684, 214172105, 428344210, 856688420]

約数ペア:

[(1, 856688420), (2, 428344210), (4, 214172105), (5, 171337684), (7, 122384060), (10, 85668842), (14, 61192030), (20, 42834421), (28, 30596015), (29, 29540980), (35, 24476812), (58, 14770490), (70, 12238406), (116, 7385245), (140, 6119203), (145, 5908196), (203, 4220140), (290, 2954098), (406, 2110070), (580, 1477049), (812, 1055035), (1015, 844028), (2030, 422014), (4060, 211007)]