51162020

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{28111}}^1$

素因数の和:28140

約数の個数: 48

約数和(自身を含む): 132238848

約数和(自身を除く): 81076828

約数列:

[1, 2, 4, 5, 7, 10, 13, 14, 20, 26, 28, 35, 52, 65, 70, 91, 130, 140, 182, 260, 364, 455, 910, 1820, 28111, 56222, 112444, 140555, 196777, 281110, 365443, 393554, 562220, 730886, 787108, 983885, 1461772, 1827215, 1967770, 2558101, 3654430, 3935540, 5116202, 7308860, 10232404, 12790505, 25581010, 51162020]

約数ペア:

[(1, 51162020), (2, 25581010), (4, 12790505), (5, 10232404), (7, 7308860), (10, 5116202), (13, 3935540), (14, 3654430), (20, 2558101), (26, 1967770), (28, 1827215), (35, 1461772), (52, 983885), (65, 787108), (70, 730886), (91, 562220), (130, 393554), (140, 365443), (182, 281110), (260, 196777), (364, 140555), (455, 112444), (910, 56222), (1820, 28111)]