80546320

素因数分解:

$2^4\times 5^1\times {\mathrm{19}}^2\times {\mathrm{2789}}^1$

素因数の和:2840

約数の個数: 60

約数和(自身を含む): 197716140

約数和(自身を除く): 117169820

約数列:

[1, 2, 4, 5, 8, 10, 16, 19, 20, 38, 40, 76, 80, 95, 152, 190, 304, 361, 380, 722, 760, 1444, 1520, 1805, 2789, 2888, 3610, 5578, 5776, 7220, 11156, 13945, 14440, 22312, 27890, 28880, 44624, 52991, 55780, 105982, 111560, 211964, 223120, 264955, 423928, 529910, 847856, 1006829, 1059820, 2013658, 2119640, 4027316, 4239280, 5034145, 8054632, 10068290, 16109264, 20136580, 40273160, 80546320]

約数ペア:

[(1, 80546320), (2, 40273160), (4, 20136580), (5, 16109264), (8, 10068290), (10, 8054632), (16, 5034145), (19, 4239280), (20, 4027316), (38, 2119640), (40, 2013658), (76, 1059820), (80, 1006829), (95, 847856), (152, 529910), (190, 423928), (304, 264955), (361, 223120), (380, 211964), (722, 111560), (760, 105982), (1444, 55780), (1520, 52991), (1805, 44624), (2789, 28880), (2888, 27890), (3610, 22312), (5578, 14440), (5776, 13945), (7220, 11156)]