20783450870

素因数分解:

$2^1\times 5^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{1087}}^1\times {\mathrm{21011}}^1$

素因数の和:22125

約数の個数: 64

約数和(自身を含む): 46087888896

約数和(自身を除く): 25304438026

約数列:

[1, 2, 5, 7, 10, 13, 14, 26, 35, 65, 70, 91, 130, 182, 455, 910, 1087, 2174, 5435, 7609, 10870, 14131, 15218, 21011, 28262, 38045, 42022, 70655, 76090, 98917, 105055, 141310, 147077, 197834, 210110, 273143, 294154, 494585, 546286, 735385, 989170, 1365715, 1470770, 1912001, 2731430, 3824002, 9560005, 19120010, 22838957, 45677914, 114194785, 159872699, 228389570, 296906441, 319745398, 593812882, 799363495, 1484532205, 1598726990, 2078345087, 2969064410, 4156690174, 10391725435, 20783450870]

約数ペア:

[(1, 20783450870), (2, 10391725435), (5, 4156690174), (7, 2969064410), (10, 2078345087), (13, 1598726990), (14, 1484532205), (26, 799363495), (35, 593812882), (65, 319745398), (70, 296906441), (91, 228389570), (130, 159872699), (182, 114194785), (455, 45677914), (910, 22838957), (1087, 19120010), (2174, 9560005), (5435, 3824002), (7609, 2731430), (10870, 1912001), (14131, 1470770), (15218, 1365715), (21011, 989170), (28262, 735385), (38045, 546286), (42022, 494585), (70655, 294154), (76090, 273143), (98917, 210110), (105055, 197834), (141310, 147077)]