261003760

素因数分解:

$2^4\times 5^1\times {\mathrm{19}}^1\times {\mathrm{171713}}^1$

素因数の和:171745

約数の個数: 40

約数和(自身を含む): 638776080

約数和(自身を除く): 377772320

約数列:

[1, 2, 4, 5, 8, 10, 16, 19, 20, 38, 40, 76, 80, 95, 152, 190, 304, 380, 760, 1520, 171713, 343426, 686852, 858565, 1373704, 1717130, 2747408, 3262547, 3434260, 6525094, 6868520, 13050188, 13737040, 16312735, 26100376, 32625470, 52200752, 65250940, 130501880, 261003760]

約数ペア:

[(1, 261003760), (2, 130501880), (4, 65250940), (5, 52200752), (8, 32625470), (10, 26100376), (16, 16312735), (19, 13737040), (20, 13050188), (38, 6868520), (40, 6525094), (76, 3434260), (80, 3262547), (95, 2747408), (152, 1717130), (190, 1373704), (304, 858565), (380, 686852), (760, 343426), (1520, 171713)]