1820160970

素因数分解:

$2^1\times 5^1\times {\mathrm{31}}^1\times {\mathrm{41}}^1\times {\mathrm{71}}^1\times {\mathrm{2017}}^1$

素因数の和:2167

約数の個数: 64

約数和(自身を含む): 3515000832

約数和(自身を除く): 1694839862

約数列:

[1, 2, 5, 10, 31, 41, 62, 71, 82, 142, 155, 205, 310, 355, 410, 710, 1271, 2017, 2201, 2542, 2911, 4034, 4402, 5822, 6355, 10085, 11005, 12710, 14555, 20170, 22010, 29110, 62527, 82697, 90241, 125054, 143207, 165394, 180482, 286414, 312635, 413485, 451205, 625270, 716035, 826970, 902410, 1432070, 2563607, 4439417, 5127214, 5871487, 8878834, 11742974, 12818035, 22197085, 25636070, 29357435, 44394170, 58714870, 182016097, 364032194, 910080485, 1820160970]

約数ペア:

[(1, 1820160970), (2, 910080485), (5, 364032194), (10, 182016097), (31, 58714870), (41, 44394170), (62, 29357435), (71, 25636070), (82, 22197085), (142, 12818035), (155, 11742974), (205, 8878834), (310, 5871487), (355, 5127214), (410, 4439417), (710, 2563607), (1271, 1432070), (2017, 902410), (2201, 826970), (2542, 716035), (2911, 625270), (4034, 451205), (4402, 413485), (5822, 312635), (6355, 286414), (10085, 180482), (11005, 165394), (12710, 143207), (14555, 125054), (20170, 90241), (22010, 82697), (29110, 62527)]