20618580

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{23}}^1\times {\mathrm{67}}^1\times {\mathrm{223}}^1$

素因数の和:325

約数の個数: 96

約数和(自身を含む): 61415424

約数和(自身を除く): 40796844

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 15, 20, 23, 30, 46, 60, 67, 69, 92, 115, 134, 138, 201, 223, 230, 268, 276, 335, 345, 402, 446, 460, 669, 670, 690, 804, 892, 1005, 1115, 1338, 1340, 1380, 1541, 2010, 2230, 2676, 3082, 3345, 4020, 4460, 4623, 5129, 6164, 6690, 7705, 9246, 10258, 13380, 14941, 15387, 15410, 18492, 20516, 23115, 25645, 29882, 30774, 30820, 44823, 46230, 51290, 59764, 61548, 74705, 76935, 89646, 92460, 102580, 149410, 153870, 179292, 224115, 298820, 307740, 343643, 448230, 687286, 896460, 1030929, 1374572, 1718215, 2061858, 3436430, 4123716, 5154645, 6872860, 10309290, 20618580]

約数ペア:

[(1, 20618580), (2, 10309290), (3, 6872860), (4, 5154645), (5, 4123716), (6, 3436430), (10, 2061858), (12, 1718215), (15, 1374572), (20, 1030929), (23, 896460), (30, 687286), (46, 448230), (60, 343643), (67, 307740), (69, 298820), (92, 224115), (115, 179292), (134, 153870), (138, 149410), (201, 102580), (223, 92460), (230, 89646), (268, 76935), (276, 74705), (335, 61548), (345, 59764), (402, 51290), (446, 46230), (460, 44823), (669, 30820), (670, 30774), (690, 29882), (804, 25645), (892, 23115), (1005, 20516), (1115, 18492), (1338, 15410), (1340, 15387), (1380, 14941), (1541, 13380), (2010, 10258), (2230, 9246), (2676, 7705), (3082, 6690), (3345, 6164), (4020, 5129), (4460, 4623)]