28785880

素因数分解:

$2^3\times 5^1\times {\mathrm{23}}^1\times {\mathrm{67}}^1\times {\mathrm{467}}^1$

素因数の和:568

約数の個数: 64

約数和(自身を含む): 68739840

約数和(自身を除く): 39953960

約数列:

[1, 2, 4, 5, 8, 10, 20, 23, 40, 46, 67, 92, 115, 134, 184, 230, 268, 335, 460, 467, 536, 670, 920, 934, 1340, 1541, 1868, 2335, 2680, 3082, 3736, 4670, 6164, 7705, 9340, 10741, 12328, 15410, 18680, 21482, 30820, 31289, 42964, 53705, 61640, 62578, 85928, 107410, 125156, 156445, 214820, 250312, 312890, 429640, 625780, 719647, 1251560, 1439294, 2878588, 3598235, 5757176, 7196470, 14392940, 28785880]

約数ペア:

[(1, 28785880), (2, 14392940), (4, 7196470), (5, 5757176), (8, 3598235), (10, 2878588), (20, 1439294), (23, 1251560), (40, 719647), (46, 625780), (67, 429640), (92, 312890), (115, 250312), (134, 214820), (184, 156445), (230, 125156), (268, 107410), (335, 85928), (460, 62578), (467, 61640), (536, 53705), (670, 42964), (920, 31289), (934, 30820), (1340, 21482), (1541, 18680), (1868, 15410), (2335, 12328), (2680, 10741), (3082, 9340), (3736, 7705), (4670, 6164)]