640970295070

素因数分解:

$2^1\times 5^1\times 7^2\times {\mathrm{2927}}^1\times {\mathrm{446909}}^1$

素因数の和:449857

約数の個数: 48

約数和(自身を含む): 1342574844480

約数和(自身を除く): 701604549410

約数列:

[1, 2, 5, 7, 10, 14, 35, 49, 70, 98, 245, 490, 2927, 5854, 14635, 20489, 29270, 40978, 102445, 143423, 204890, 286846, 446909, 717115, 893818, 1434230, 2234545, 3128363, 4469090, 6256726, 15641815, 21898541, 31283630, 43797082, 109492705, 218985410, 1308102643, 2616205286, 6540513215, 9156718501, 13081026430, 18313437002, 45783592505, 64097029507, 91567185010, 128194059014, 320485147535, 640970295070]

約数ペア:

[(1, 640970295070), (2, 320485147535), (5, 128194059014), (7, 91567185010), (10, 64097029507), (14, 45783592505), (35, 18313437002), (49, 13081026430), (70, 9156718501), (98, 6540513215), (245, 2616205286), (490, 1308102643), (2927, 218985410), (5854, 109492705), (14635, 43797082), (20489, 31283630), (29270, 21898541), (40978, 15641815), (102445, 6256726), (143423, 4469090), (204890, 3128363), (286846, 2234545), (446909, 1434230), (717115, 893818)]