28443760

素因数分解:

$2^4\times 5^1\times {\mathrm{19}}^1\times {\mathrm{18713}}^1$

素因数の和:18745

約数の個数: 40

約数和(自身を含む): 69616080

約数和(自身を除く): 41172320

約数列:

[1, 2, 4, 5, 8, 10, 16, 19, 20, 38, 40, 76, 80, 95, 152, 190, 304, 380, 760, 1520, 18713, 37426, 74852, 93565, 149704, 187130, 299408, 355547, 374260, 711094, 748520, 1422188, 1497040, 1777735, 2844376, 3555470, 5688752, 7110940, 14221880, 28443760]

約数ペア:

[(1, 28443760), (2, 14221880), (4, 7110940), (5, 5688752), (8, 3555470), (10, 2844376), (16, 1777735), (19, 1497040), (20, 1422188), (38, 748520), (40, 711094), (76, 374260), (80, 355547), (95, 299408), (152, 187130), (190, 149704), (304, 93565), (380, 74852), (760, 37426), (1520, 18713)]