20193516250

素因数分解:

$2^1\times 5^4\times {\mathrm{31}}^1\times {\mathrm{61}}^1\times {\mathrm{8543}}^1$

素因数の和:8657

約数の個数: 80

約数和(自身を含む): 39716886528

約数和(自身を除く): 19523370278

約数列:

[1, 2, 5, 10, 25, 31, 50, 61, 62, 122, 125, 155, 250, 305, 310, 610, 625, 775, 1250, 1525, 1550, 1891, 3050, 3782, 3875, 7625, 7750, 8543, 9455, 15250, 17086, 18910, 19375, 38125, 38750, 42715, 47275, 76250, 85430, 94550, 213575, 236375, 264833, 427150, 472750, 521123, 529666, 1042246, 1067875, 1181875, 1324165, 2135750, 2363750, 2605615, 2648330, 5211230, 5339375, 6620825, 10678750, 13028075, 13241650, 16154813, 26056150, 32309626, 33104125, 65140375, 66208250, 80774065, 130280750, 161548130, 165520625, 325701875, 331041250, 403870325, 651403750, 807740650, 2019351625, 4038703250, 10096758125, 20193516250]

約数ペア:

[(1, 20193516250), (2, 10096758125), (5, 4038703250), (10, 2019351625), (25, 807740650), (31, 651403750), (50, 403870325), (61, 331041250), (62, 325701875), (122, 165520625), (125, 161548130), (155, 130280750), (250, 80774065), (305, 66208250), (310, 65140375), (610, 33104125), (625, 32309626), (775, 26056150), (1250, 16154813), (1525, 13241650), (1550, 13028075), (1891, 10678750), (3050, 6620825), (3782, 5339375), (3875, 5211230), (7625, 2648330), (7750, 2605615), (8543, 2363750), (9455, 2135750), (15250, 1324165), (17086, 1181875), (18910, 1067875), (19375, 1042246), (38125, 529666), (38750, 521123), (42715, 472750), (47275, 427150), (76250, 264833), (85430, 236375), (94550, 213575)]