664991720

素因数分解:

$2^3\times 5^1\times {\mathrm{17}}^1\times {\mathrm{47}}^1\times {\mathrm{20807}}^1$

素因数の和:20882

約数の個数: 64

約数和(自身を含む): 1618030080

約数和(自身を除く): 953038360

約数列:

[1, 2, 4, 5, 8, 10, 17, 20, 34, 40, 47, 68, 85, 94, 136, 170, 188, 235, 340, 376, 470, 680, 799, 940, 1598, 1880, 3196, 3995, 6392, 7990, 15980, 20807, 31960, 41614, 83228, 104035, 166456, 208070, 353719, 416140, 707438, 832280, 977929, 1414876, 1768595, 1955858, 2829752, 3537190, 3911716, 4889645, 7074380, 7823432, 9779290, 14148760, 16624793, 19558580, 33249586, 39117160, 66499172, 83123965, 132998344, 166247930, 332495860, 664991720]

約数ペア:

[(1, 664991720), (2, 332495860), (4, 166247930), (5, 132998344), (8, 83123965), (10, 66499172), (17, 39117160), (20, 33249586), (34, 19558580), (40, 16624793), (47, 14148760), (68, 9779290), (85, 7823432), (94, 7074380), (136, 4889645), (170, 3911716), (188, 3537190), (235, 2829752), (340, 1955858), (376, 1768595), (470, 1414876), (680, 977929), (799, 832280), (940, 707438), (1598, 416140), (1880, 353719), (3196, 208070), (3995, 166456), (6392, 104035), (7990, 83228), (15980, 41614), (20807, 31960)]