19951520

素因数分解:

$2^5\times 5^1\times {\mathrm{19}}^1\times {\mathrm{6563}}^1$

素因数の和:6597

約数の個数: 48

約数和(自身を含む): 49623840

約数和(自身を除く): 29672320

約数列:

[1, 2, 4, 5, 8, 10, 16, 19, 20, 32, 38, 40, 76, 80, 95, 152, 160, 190, 304, 380, 608, 760, 1520, 3040, 6563, 13126, 26252, 32815, 52504, 65630, 105008, 124697, 131260, 210016, 249394, 262520, 498788, 525040, 623485, 997576, 1050080, 1246970, 1995152, 2493940, 3990304, 4987880, 9975760, 19951520]

約数ペア:

[(1, 19951520), (2, 9975760), (4, 4987880), (5, 3990304), (8, 2493940), (10, 1995152), (16, 1246970), (19, 1050080), (20, 997576), (32, 623485), (38, 525040), (40, 498788), (76, 262520), (80, 249394), (95, 210016), (152, 131260), (160, 124697), (190, 105008), (304, 65630), (380, 52504), (608, 32815), (760, 26252), (1520, 13126), (3040, 6563)]