81633760

素因数分解:

$2^5\times 5^1\times {\mathrm{13}}^2\times {\mathrm{3019}}^1$

素因数の和:3060

約数の個数: 72

約数和(自身を含む): 208905480

約数和(自身を除く): 127271720

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 20, 26, 32, 40, 52, 65, 80, 104, 130, 160, 169, 208, 260, 338, 416, 520, 676, 845, 1040, 1352, 1690, 2080, 2704, 3019, 3380, 5408, 6038, 6760, 12076, 13520, 15095, 24152, 27040, 30190, 39247, 48304, 60380, 78494, 96608, 120760, 156988, 196235, 241520, 313976, 392470, 483040, 510211, 627952, 784940, 1020422, 1255904, 1569880, 2040844, 2551055, 3139760, 4081688, 5102110, 6279520, 8163376, 10204220, 16326752, 20408440, 40816880, 81633760]

約数ペア:

[(1, 81633760), (2, 40816880), (4, 20408440), (5, 16326752), (8, 10204220), (10, 8163376), (13, 6279520), (16, 5102110), (20, 4081688), (26, 3139760), (32, 2551055), (40, 2040844), (52, 1569880), (65, 1255904), (80, 1020422), (104, 784940), (130, 627952), (160, 510211), (169, 483040), (208, 392470), (260, 313976), (338, 241520), (416, 196235), (520, 156988), (676, 120760), (845, 96608), (1040, 78494), (1352, 60380), (1690, 48304), (2080, 39247), (2704, 30190), (3019, 27040), (3380, 24152), (5408, 15095), (6038, 13520), (6760, 12076)]