19503520

素因数分解:

$2^5\times 5^1\times {\mathrm{79}}^1\times {\mathrm{1543}}^1$

素因数の和:1637

約数の個数: 48

約数和(自身を含む): 46690560

約数和(自身を除く): 27187040

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 79, 80, 158, 160, 316, 395, 632, 790, 1264, 1543, 1580, 2528, 3086, 3160, 6172, 6320, 7715, 12344, 12640, 15430, 24688, 30860, 49376, 61720, 121897, 123440, 243794, 246880, 487588, 609485, 975176, 1218970, 1950352, 2437940, 3900704, 4875880, 9751760, 19503520]

約数ペア:

[(1, 19503520), (2, 9751760), (4, 4875880), (5, 3900704), (8, 2437940), (10, 1950352), (16, 1218970), (20, 975176), (32, 609485), (40, 487588), (79, 246880), (80, 243794), (158, 123440), (160, 121897), (316, 61720), (395, 49376), (632, 30860), (790, 24688), (1264, 15430), (1543, 12640), (1580, 12344), (2528, 7715), (3086, 6320), (3160, 6172)]