20165520

素因数分解:

$2^4\times 3^1\times 5^1\times {\mathrm{73}}^1\times {\mathrm{1151}}^1$

素因数の和:1240

約数の個数: 80

約数和(自身を含む): 63424512

約数和(自身を除く): 43258992

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 16, 20, 24, 30, 40, 48, 60, 73, 80, 120, 146, 219, 240, 292, 365, 438, 584, 730, 876, 1095, 1151, 1168, 1460, 1752, 2190, 2302, 2920, 3453, 3504, 4380, 4604, 5755, 5840, 6906, 8760, 9208, 11510, 13812, 17265, 17520, 18416, 23020, 27624, 34530, 46040, 55248, 69060, 84023, 92080, 138120, 168046, 252069, 276240, 336092, 420115, 504138, 672184, 840230, 1008276, 1260345, 1344368, 1680460, 2016552, 2520690, 3360920, 4033104, 5041380, 6721840, 10082760, 20165520]

約数ペア:

[(1, 20165520), (2, 10082760), (3, 6721840), (4, 5041380), (5, 4033104), (6, 3360920), (8, 2520690), (10, 2016552), (12, 1680460), (15, 1344368), (16, 1260345), (20, 1008276), (24, 840230), (30, 672184), (40, 504138), (48, 420115), (60, 336092), (73, 276240), (80, 252069), (120, 168046), (146, 138120), (219, 92080), (240, 84023), (292, 69060), (365, 55248), (438, 46040), (584, 34530), (730, 27624), (876, 23020), (1095, 18416), (1151, 17520), (1168, 17265), (1460, 13812), (1752, 11510), (2190, 9208), (2302, 8760), (2920, 6906), (3453, 5840), (3504, 5755), (4380, 4604)]