128804950

素因数分解:

$2^1\times 5^2\times {\mathrm{29}}^1\times {\mathrm{211}}^1\times {\mathrm{421}}^1$

素因数の和:673

約数の個数: 48

約数和(自身を含む): 249604560

約数和(自身を除く): 120799610

約数列:

[1, 2, 5, 10, 25, 29, 50, 58, 145, 211, 290, 421, 422, 725, 842, 1055, 1450, 2105, 2110, 4210, 5275, 6119, 10525, 10550, 12209, 12238, 21050, 24418, 30595, 61045, 61190, 88831, 122090, 152975, 177662, 305225, 305950, 444155, 610450, 888310, 2220775, 2576099, 4441550, 5152198, 12880495, 25760990, 64402475, 128804950]

約数ペア:

[(1, 128804950), (2, 64402475), (5, 25760990), (10, 12880495), (25, 5152198), (29, 4441550), (50, 2576099), (58, 2220775), (145, 888310), (211, 610450), (290, 444155), (421, 305950), (422, 305225), (725, 177662), (842, 152975), (1055, 122090), (1450, 88831), (2105, 61190), (2110, 61045), (4210, 30595), (5275, 24418), (6119, 21050), (10525, 12238), (10550, 12209)]