1640986460

素因数分解:

$2^2\times 5^1\times {\mathrm{29}}^1\times {\mathrm{41}}^1\times {\mathrm{151}}^1\times {\mathrm{457}}^1$

素因数の和:687

約数の個数: 96

約数和(自身を含む): 3684078720

約数和(自身を除く): 2043092260

約数列:

[1, 2, 4, 5, 10, 20, 29, 41, 58, 82, 116, 145, 151, 164, 205, 290, 302, 410, 457, 580, 604, 755, 820, 914, 1189, 1510, 1828, 2285, 2378, 3020, 4379, 4570, 4756, 5945, 6191, 8758, 9140, 11890, 12382, 13253, 17516, 18737, 21895, 23780, 24764, 26506, 30955, 37474, 43790, 53012, 61910, 66265, 69007, 74948, 87580, 93685, 123820, 132530, 138014, 179539, 187370, 265060, 276028, 345035, 359078, 374740, 543373, 690070, 718156, 897695, 1086746, 1380140, 1795390, 2001203, 2173492, 2716865, 2829287, 3590780, 4002406, 5433730, 5658574, 8004812, 10006015, 10867460, 11317148, 14146435, 20012030, 28292870, 40024060, 56585740, 82049323, 164098646, 328197292, 410246615, 820493230, 1640986460]

約数ペア:

[(1, 1640986460), (2, 820493230), (4, 410246615), (5, 328197292), (10, 164098646), (20, 82049323), (29, 56585740), (41, 40024060), (58, 28292870), (82, 20012030), (116, 14146435), (145, 11317148), (151, 10867460), (164, 10006015), (205, 8004812), (290, 5658574), (302, 5433730), (410, 4002406), (457, 3590780), (580, 2829287), (604, 2716865), (755, 2173492), (820, 2001203), (914, 1795390), (1189, 1380140), (1510, 1086746), (1828, 897695), (2285, 718156), (2378, 690070), (3020, 543373), (4379, 374740), (4570, 359078), (4756, 345035), (5945, 276028), (6191, 265060), (8758, 187370), (9140, 179539), (11890, 138014), (12382, 132530), (13253, 123820), (17516, 93685), (18737, 87580), (21895, 74948), (23780, 69007), (24764, 66265), (26506, 61910), (30955, 53012), (37474, 43790)]