161854539

素因数分解:

$3^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{29}}^1\times {\mathrm{37}}^1\times {\mathrm{653}}^1$

素因数の和:740

約数の個数: 64

約数和(自身を含む): 286295040

約数和(自身を除く): 124440501

約数列:

[1, 3, 7, 11, 21, 29, 33, 37, 77, 87, 111, 203, 231, 259, 319, 407, 609, 653, 777, 957, 1073, 1221, 1959, 2233, 2849, 3219, 4571, 6699, 7183, 7511, 8547, 11803, 13713, 18937, 21549, 22533, 24161, 35409, 50281, 56811, 72483, 82621, 132559, 150843, 169127, 208307, 247863, 265771, 397677, 507381, 624921, 700669, 797313, 1458149, 1860397, 2102007, 4374447, 4904683, 5581191, 7707359, 14714049, 23122077, 53951513, 161854539]

約数ペア:

[(1, 161854539), (3, 53951513), (7, 23122077), (11, 14714049), (21, 7707359), (29, 5581191), (33, 4904683), (37, 4374447), (77, 2102007), (87, 1860397), (111, 1458149), (203, 797313), (231, 700669), (259, 624921), (319, 507381), (407, 397677), (609, 265771), (653, 247863), (777, 208307), (957, 169127), (1073, 150843), (1221, 132559), (1959, 82621), (2233, 72483), (2849, 56811), (3219, 50281), (4571, 35409), (6699, 24161), (7183, 22533), (7511, 21549), (8547, 18937), (11803, 13713)]