161538410

素因数分解:

$2^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{29}}^1\times {\mathrm{79}}^1\times {\mathrm{641}}^1$

素因数の和:767

約数の個数: 64

約数和(自身を含む): 332812800

約数和(自身を除く): 171274390

約数列:

[1, 2, 5, 10, 11, 22, 29, 55, 58, 79, 110, 145, 158, 290, 319, 395, 638, 641, 790, 869, 1282, 1595, 1738, 2291, 3190, 3205, 4345, 4582, 6410, 7051, 8690, 11455, 14102, 18589, 22910, 25201, 35255, 37178, 50402, 50639, 70510, 92945, 101278, 126005, 185890, 204479, 252010, 253195, 408958, 506390, 557029, 1022395, 1114058, 1468531, 2044790, 2785145, 2937062, 5570290, 7342655, 14685310, 16153841, 32307682, 80769205, 161538410]

約数ペア:

[(1, 161538410), (2, 80769205), (5, 32307682), (10, 16153841), (11, 14685310), (22, 7342655), (29, 5570290), (55, 2937062), (58, 2785145), (79, 2044790), (110, 1468531), (145, 1114058), (158, 1022395), (290, 557029), (319, 506390), (395, 408958), (638, 253195), (641, 252010), (790, 204479), (869, 185890), (1282, 126005), (1595, 101278), (1738, 92945), (2291, 70510), (3190, 50639), (3205, 50402), (4345, 37178), (4582, 35255), (6410, 25201), (7051, 22910), (8690, 18589), (11455, 14102)]