20005014890

素因数分解:

$2^1\times 5^1\times 7^2\times {\mathrm{113}}^1\times {\mathrm{439}}^1\times {\mathrm{823}}^1$

素因数の和:1396

約数の個数: 96

約数和(自身を含む): 42406467840

約数和(自身を除く): 22401452950

約数列:

[1, 2, 5, 7, 10, 14, 35, 49, 70, 98, 113, 226, 245, 439, 490, 565, 791, 823, 878, 1130, 1582, 1646, 2195, 3073, 3955, 4115, 4390, 5537, 5761, 6146, 7910, 8230, 11074, 11522, 15365, 21511, 27685, 28805, 30730, 40327, 43022, 49607, 55370, 57610, 80654, 92999, 99214, 107555, 185998, 201635, 215110, 248035, 347249, 361297, 403270, 464995, 496070, 650993, 694498, 722594, 929990, 1301986, 1736245, 1806485, 2430743, 2529079, 3254965, 3472490, 3612970, 4556951, 4861486, 5058158, 6509930, 9113902, 12153715, 12645395, 17703553, 22784755, 24307430, 25290790, 35407106, 40826561, 45569510, 81653122, 88517765, 177035530, 204132805, 285785927, 408265610, 571571854, 1428929635, 2000501489, 2857859270, 4001002978, 10002507445, 20005014890]

約数ペア:

[(1, 20005014890), (2, 10002507445), (5, 4001002978), (7, 2857859270), (10, 2000501489), (14, 1428929635), (35, 571571854), (49, 408265610), (70, 285785927), (98, 204132805), (113, 177035530), (226, 88517765), (245, 81653122), (439, 45569510), (490, 40826561), (565, 35407106), (791, 25290790), (823, 24307430), (878, 22784755), (1130, 17703553), (1582, 12645395), (1646, 12153715), (2195, 9113902), (3073, 6509930), (3955, 5058158), (4115, 4861486), (4390, 4556951), (5537, 3612970), (5761, 3472490), (6146, 3254965), (7910, 2529079), (8230, 2430743), (11074, 1806485), (11522, 1736245), (15365, 1301986), (21511, 929990), (27685, 722594), (28805, 694498), (30730, 650993), (40327, 496070), (43022, 464995), (49607, 403270), (55370, 361297), (57610, 347249), (80654, 248035), (92999, 215110), (99214, 201635), (107555, 185998)]