128211040

素因数分解:

$2^5\times 5^1\times {\mathrm{31}}^1\times {\mathrm{25849}}^1$

素因数の和:25895

約数の個数: 48

約数和(自身を含む): 312681600

約数和(自身を除く): 184470560

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 31, 32, 40, 62, 80, 124, 155, 160, 248, 310, 496, 620, 992, 1240, 2480, 4960, 25849, 51698, 103396, 129245, 206792, 258490, 413584, 516980, 801319, 827168, 1033960, 1602638, 2067920, 3205276, 4006595, 4135840, 6410552, 8013190, 12821104, 16026380, 25642208, 32052760, 64105520, 128211040]

約数ペア:

[(1, 128211040), (2, 64105520), (4, 32052760), (5, 25642208), (8, 16026380), (10, 12821104), (16, 8013190), (20, 6410552), (31, 4135840), (32, 4006595), (40, 3205276), (62, 2067920), (80, 1602638), (124, 1033960), (155, 827168), (160, 801319), (248, 516980), (310, 413584), (496, 258490), (620, 206792), (992, 129245), (1240, 103396), (2480, 51698), (4960, 25849)]