20441389864

素因数分解:

$2^3\times 7^1\times {\mathrm{131}}^1\times {\mathrm{149}}^1\times {\mathrm{18701}}^1$

素因数の和:18994

約数の個数: 64

約数和(自身を含む): 44435952000

約数和(自身を除く): 23994562136

約数列:

[1, 2, 4, 7, 8, 14, 28, 56, 131, 149, 262, 298, 524, 596, 917, 1043, 1048, 1192, 1834, 2086, 3668, 4172, 7336, 8344, 18701, 19519, 37402, 39038, 74804, 78076, 130907, 136633, 149608, 156152, 261814, 273266, 523628, 546532, 1047256, 1093064, 2449831, 2786449, 4899662, 5572898, 9799324, 11145796, 17148817, 19505143, 19598648, 22291592, 34297634, 39010286, 68595268, 78020572, 137190536, 156041144, 365024819, 730049638, 1460099276, 2555173733, 2920198552, 5110347466, 10220694932, 20441389864]

約数ペア:

[(1, 20441389864), (2, 10220694932), (4, 5110347466), (7, 2920198552), (8, 2555173733), (14, 1460099276), (28, 730049638), (56, 365024819), (131, 156041144), (149, 137190536), (262, 78020572), (298, 68595268), (524, 39010286), (596, 34297634), (917, 22291592), (1043, 19598648), (1048, 19505143), (1192, 17148817), (1834, 11145796), (2086, 9799324), (3668, 5572898), (4172, 4899662), (7336, 2786449), (8344, 2449831), (18701, 1093064), (19519, 1047256), (37402, 546532), (39038, 523628), (74804, 273266), (78076, 261814), (130907, 156152), (136633, 149608)]