31406320

素因数分解:

$2^4\times 5^1\times {\mathrm{11}}^1\times {\mathrm{89}}^1\times {\mathrm{401}}^1$

素因数の和:514

約数の個数: 80

約数和(自身を含む): 80753760

約数和(自身を除く): 49347440

約数列:

[1, 2, 4, 5, 8, 10, 11, 16, 20, 22, 40, 44, 55, 80, 88, 89, 110, 176, 178, 220, 356, 401, 440, 445, 712, 802, 880, 890, 979, 1424, 1604, 1780, 1958, 2005, 3208, 3560, 3916, 4010, 4411, 4895, 6416, 7120, 7832, 8020, 8822, 9790, 15664, 16040, 17644, 19580, 22055, 32080, 35288, 35689, 39160, 44110, 70576, 71378, 78320, 88220, 142756, 176440, 178445, 285512, 352880, 356890, 392579, 571024, 713780, 785158, 1427560, 1570316, 1962895, 2855120, 3140632, 3925790, 6281264, 7851580, 15703160, 31406320]

約数ペア:

[(1, 31406320), (2, 15703160), (4, 7851580), (5, 6281264), (8, 3925790), (10, 3140632), (11, 2855120), (16, 1962895), (20, 1570316), (22, 1427560), (40, 785158), (44, 713780), (55, 571024), (80, 392579), (88, 356890), (89, 352880), (110, 285512), (176, 178445), (178, 176440), (220, 142756), (356, 88220), (401, 78320), (440, 71378), (445, 70576), (712, 44110), (802, 39160), (880, 35689), (890, 35288), (979, 32080), (1424, 22055), (1604, 19580), (1780, 17644), (1958, 16040), (2005, 15664), (3208, 9790), (3560, 8822), (3916, 8020), (4010, 7832), (4411, 7120), (4895, 6416)]