20172840

素因数分解:

$2^3\times 3^1\times 5^1\times {\mathrm{23}}^1\times {\mathrm{7309}}^1$

素因数の和:7346

約数の個数: 64

約数和(自身を含む): 63158400

約数和(自身を除く): 42985560

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 20, 23, 24, 30, 40, 46, 60, 69, 92, 115, 120, 138, 184, 230, 276, 345, 460, 552, 690, 920, 1380, 2760, 7309, 14618, 21927, 29236, 36545, 43854, 58472, 73090, 87708, 109635, 146180, 168107, 175416, 219270, 292360, 336214, 438540, 504321, 672428, 840535, 877080, 1008642, 1344856, 1681070, 2017284, 2521605, 3362140, 4034568, 5043210, 6724280, 10086420, 20172840]

約数ペア:

[(1, 20172840), (2, 10086420), (3, 6724280), (4, 5043210), (5, 4034568), (6, 3362140), (8, 2521605), (10, 2017284), (12, 1681070), (15, 1344856), (20, 1008642), (23, 877080), (24, 840535), (30, 672428), (40, 504321), (46, 438540), (60, 336214), (69, 292360), (92, 219270), (115, 175416), (120, 168107), (138, 146180), (184, 109635), (230, 87708), (276, 73090), (345, 58472), (460, 43854), (552, 36545), (690, 29236), (920, 21927), (1380, 14618), (2760, 7309)]