788020

素因数分解:

$2^2\times 5^1\times {\mathrm{31}}^2\times {\mathrm{41}}^1$

素因数の和:112

約数の個数: 36

約数和(自身を含む): 1751652

約数和(自身を除く): 963632

約数列:

[1, 2, 4, 5, 10, 20, 31, 41, 62, 82, 124, 155, 164, 205, 310, 410, 620, 820, 961, 1271, 1922, 2542, 3844, 4805, 5084, 6355, 9610, 12710, 19220, 25420, 39401, 78802, 157604, 197005, 394010, 788020]

約数ペア:

[(1, 788020), (2, 394010), (4, 197005), (5, 157604), (10, 78802), (20, 39401), (31, 25420), (41, 19220), (62, 12710), (82, 9610), (124, 6355), (155, 5084), (164, 4805), (205, 3844), (310, 2542), (410, 1922), (620, 1271), (820, 961)]