20925080

素因数分解:

$2^3\times 5^1\times {\mathrm{11}}^1\times {\mathrm{19}}^1\times {\mathrm{2503}}^1$

素因数の和:2544

約数の個数: 64

約数和(自身を含む): 54086400

約数和(自身を除く): 33161320

約数列:

[1, 2, 4, 5, 8, 10, 11, 19, 20, 22, 38, 40, 44, 55, 76, 88, 95, 110, 152, 190, 209, 220, 380, 418, 440, 760, 836, 1045, 1672, 2090, 2503, 4180, 5006, 8360, 10012, 12515, 20024, 25030, 27533, 47557, 50060, 55066, 95114, 100120, 110132, 137665, 190228, 220264, 237785, 275330, 380456, 475570, 523127, 550660, 951140, 1046254, 1101320, 1902280, 2092508, 2615635, 4185016, 5231270, 10462540, 20925080]

約数ペア:

[(1, 20925080), (2, 10462540), (4, 5231270), (5, 4185016), (8, 2615635), (10, 2092508), (11, 1902280), (19, 1101320), (20, 1046254), (22, 951140), (38, 550660), (40, 523127), (44, 475570), (55, 380456), (76, 275330), (88, 237785), (95, 220264), (110, 190228), (152, 137665), (190, 110132), (209, 100120), (220, 95114), (380, 55066), (418, 50060), (440, 47557), (760, 27533), (836, 25030), (1045, 20024), (1672, 12515), (2090, 10012), (2503, 8360), (4180, 5006)]