20249618120

素因数分解:

$2^3\times 5^1\times {\mathrm{79}}^1\times {\mathrm{229}}^1\times {\mathrm{27983}}^1$

素因数の和:28302

約数の個数: 64

約数和(自身を含む): 46341504000

約数和(自身を除く): 26091885880

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 79, 158, 229, 316, 395, 458, 632, 790, 916, 1145, 1580, 1832, 2290, 3160, 4580, 9160, 18091, 27983, 36182, 55966, 72364, 90455, 111932, 139915, 144728, 180910, 223864, 279830, 361820, 559660, 723640, 1119320, 2210657, 4421314, 6408107, 8842628, 11053285, 12816214, 17685256, 22106570, 25632428, 32040535, 44213140, 51264856, 64081070, 88426280, 128162140, 256324280, 506240453, 1012480906, 2024961812, 2531202265, 4049923624, 5062404530, 10124809060, 20249618120]

約数ペア:

[(1, 20249618120), (2, 10124809060), (4, 5062404530), (5, 4049923624), (8, 2531202265), (10, 2024961812), (20, 1012480906), (40, 506240453), (79, 256324280), (158, 128162140), (229, 88426280), (316, 64081070), (395, 51264856), (458, 44213140), (632, 32040535), (790, 25632428), (916, 22106570), (1145, 17685256), (1580, 12816214), (1832, 11053285), (2290, 8842628), (3160, 6408107), (4580, 4421314), (9160, 2210657), (18091, 1119320), (27983, 723640), (36182, 559660), (55966, 361820), (72364, 279830), (90455, 223864), (111932, 180910), (139915, 144728)]