19552900

素因数分解:

$2^2\times 5^2\times {\mathrm{19}}^1\times {\mathrm{41}}^1\times {\mathrm{251}}^1$

素因数の和:325

約数の個数: 72

約数和(自身を含む): 45934560

約数和(自身を除く): 26381660

約数列:

[1, 2, 4, 5, 10, 19, 20, 25, 38, 41, 50, 76, 82, 95, 100, 164, 190, 205, 251, 380, 410, 475, 502, 779, 820, 950, 1004, 1025, 1255, 1558, 1900, 2050, 2510, 3116, 3895, 4100, 4769, 5020, 6275, 7790, 9538, 10291, 12550, 15580, 19076, 19475, 20582, 23845, 25100, 38950, 41164, 47690, 51455, 77900, 95380, 102910, 119225, 195529, 205820, 238450, 257275, 391058, 476900, 514550, 782116, 977645, 1029100, 1955290, 3910580, 4888225, 9776450, 19552900]

約数ペア:

[(1, 19552900), (2, 9776450), (4, 4888225), (5, 3910580), (10, 1955290), (19, 1029100), (20, 977645), (25, 782116), (38, 514550), (41, 476900), (50, 391058), (76, 257275), (82, 238450), (95, 205820), (100, 195529), (164, 119225), (190, 102910), (205, 95380), (251, 77900), (380, 51455), (410, 47690), (475, 41164), (502, 38950), (779, 25100), (820, 23845), (950, 20582), (1004, 19475), (1025, 19076), (1255, 15580), (1558, 12550), (1900, 10291), (2050, 9538), (2510, 7790), (3116, 6275), (3895, 5020), (4100, 4769)]