28224460

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^2\times {\mathrm{107}}^1\times {\mathrm{109}}^1$

素因数の和:247

約数の個数: 72

約数和(自身を含む): 66361680

約数和(自身を除く): 38137220

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 44, 55, 107, 109, 110, 121, 214, 218, 220, 242, 428, 436, 484, 535, 545, 605, 1070, 1090, 1177, 1199, 1210, 2140, 2180, 2354, 2398, 2420, 4708, 4796, 5885, 5995, 11663, 11770, 11990, 12947, 13189, 23326, 23540, 23980, 25894, 26378, 46652, 51788, 52756, 58315, 64735, 65945, 116630, 128293, 129470, 131890, 233260, 256586, 258940, 263780, 513172, 641465, 1282930, 1411223, 2565860, 2822446, 5644892, 7056115, 14112230, 28224460]

約数ペア:

[(1, 28224460), (2, 14112230), (4, 7056115), (5, 5644892), (10, 2822446), (11, 2565860), (20, 1411223), (22, 1282930), (44, 641465), (55, 513172), (107, 263780), (109, 258940), (110, 256586), (121, 233260), (214, 131890), (218, 129470), (220, 128293), (242, 116630), (428, 65945), (436, 64735), (484, 58315), (535, 52756), (545, 51788), (605, 46652), (1070, 26378), (1090, 25894), (1177, 23980), (1199, 23540), (1210, 23326), (2140, 13189), (2180, 12947), (2354, 11990), (2398, 11770), (2420, 11663), (4708, 5995), (4796, 5885)]