1640781636

素因数分解:

$2^2\times 3^1\times {\mathrm{13}}^1\times {\mathrm{23}}^1\times {\mathrm{557}}^1\times {\mathrm{821}}^1$

素因数の和:1421

約数の個数: 96

約数和(自身を含む): 4315223808

約数和(自身を除く): 2674442172

約数列:

[1, 2, 3, 4, 6, 12, 13, 23, 26, 39, 46, 52, 69, 78, 92, 138, 156, 276, 299, 557, 598, 821, 897, 1114, 1196, 1642, 1671, 1794, 2228, 2463, 3284, 3342, 3588, 4926, 6684, 7241, 9852, 10673, 12811, 14482, 18883, 21346, 21723, 25622, 28964, 32019, 37766, 38433, 42692, 43446, 51244, 56649, 64038, 75532, 76866, 86892, 113298, 128076, 153732, 166543, 226596, 245479, 333086, 457297, 490958, 499629, 666172, 736437, 914594, 981916, 999258, 1371891, 1472874, 1829188, 1998516, 2743782, 2945748, 5487564, 5944861, 10517831, 11889722, 17834583, 21035662, 23779444, 31553493, 35669166, 42071324, 63106986, 71338332, 126213972, 136731803, 273463606, 410195409, 546927212, 820390818, 1640781636]

約数ペア:

[(1, 1640781636), (2, 820390818), (3, 546927212), (4, 410195409), (6, 273463606), (12, 136731803), (13, 126213972), (23, 71338332), (26, 63106986), (39, 42071324), (46, 35669166), (52, 31553493), (69, 23779444), (78, 21035662), (92, 17834583), (138, 11889722), (156, 10517831), (276, 5944861), (299, 5487564), (557, 2945748), (598, 2743782), (821, 1998516), (897, 1829188), (1114, 1472874), (1196, 1371891), (1642, 999258), (1671, 981916), (1794, 914594), (2228, 736437), (2463, 666172), (3284, 499629), (3342, 490958), (3588, 457297), (4926, 333086), (6684, 245479), (7241, 226596), (9852, 166543), (10673, 153732), (12811, 128076), (14482, 113298), (18883, 86892), (21346, 76866), (21723, 75532), (25622, 64038), (28964, 56649), (32019, 51244), (37766, 43446), (38433, 42692)]