12270280

素因数分解:

$2^3\times 5^1\times {\mathrm{11}}^1\times {\mathrm{79}}^1\times {\mathrm{353}}^1$

素因数の和:454

約数の個数: 64

約数和(自身を含む): 30585600

約数和(自身を除く): 18315320

約数列:

[1, 2, 4, 5, 8, 10, 11, 20, 22, 40, 44, 55, 79, 88, 110, 158, 220, 316, 353, 395, 440, 632, 706, 790, 869, 1412, 1580, 1738, 1765, 2824, 3160, 3476, 3530, 3883, 4345, 6952, 7060, 7766, 8690, 14120, 15532, 17380, 19415, 27887, 31064, 34760, 38830, 55774, 77660, 111548, 139435, 155320, 223096, 278870, 306757, 557740, 613514, 1115480, 1227028, 1533785, 2454056, 3067570, 6135140, 12270280]

約数ペア:

[(1, 12270280), (2, 6135140), (4, 3067570), (5, 2454056), (8, 1533785), (10, 1227028), (11, 1115480), (20, 613514), (22, 557740), (40, 306757), (44, 278870), (55, 223096), (79, 155320), (88, 139435), (110, 111548), (158, 77660), (220, 55774), (316, 38830), (353, 34760), (395, 31064), (440, 27887), (632, 19415), (706, 17380), (790, 15532), (869, 14120), (1412, 8690), (1580, 7766), (1738, 7060), (1765, 6952), (2824, 4345), (3160, 3883), (3476, 3530)]