19881185278

素因数分解:

$2^1\times {\mathrm{41}}^1\times {\mathrm{43}}^1\times {\mathrm{59}}^1\times {\mathrm{227}}^1\times {\mathrm{421}}^1$

素因数の和:793

約数の個数: 64

約数和(自身を含む): 32005290240

約数和(自身を除く): 12124104962

約数列:

[1, 2, 41, 43, 59, 82, 86, 118, 227, 421, 454, 842, 1763, 2419, 2537, 3526, 4838, 5074, 9307, 9761, 13393, 17261, 18103, 18614, 19522, 24839, 26786, 34522, 36206, 49678, 95567, 104017, 191134, 208034, 400201, 549113, 575899, 742223, 800402, 1018399, 1068077, 1098226, 1151798, 1484446, 2036798, 2136154, 3918247, 4109381, 5638453, 7836494, 8218762, 11276906, 23611859, 43791157, 47223718, 87582314, 168484621, 231176573, 242453479, 336969242, 462353146, 484906958, 9940592639, 19881185278]

約数ペア:

[(1, 19881185278), (2, 9940592639), (41, 484906958), (43, 462353146), (59, 336969242), (82, 242453479), (86, 231176573), (118, 168484621), (227, 87582314), (421, 47223718), (454, 43791157), (842, 23611859), (1763, 11276906), (2419, 8218762), (2537, 7836494), (3526, 5638453), (4838, 4109381), (5074, 3918247), (9307, 2136154), (9761, 2036798), (13393, 1484446), (17261, 1151798), (18103, 1098226), (18614, 1068077), (19522, 1018399), (24839, 800402), (26786, 742223), (34522, 575899), (36206, 549113), (49678, 400201), (95567, 208034), (104017, 191134)]