2019505820

素因数分解:

$2^2\times 5^1\times {\mathrm{17}}^1\times {\mathrm{19}}^1\times {\mathrm{312617}}^1$

素因数の和:312662

約数の個数: 48

約数和(自身を含む): 4726784160

約数和(自身を除く): 2707278340

約数列:

[1, 2, 4, 5, 10, 17, 19, 20, 34, 38, 68, 76, 85, 95, 170, 190, 323, 340, 380, 646, 1292, 1615, 3230, 6460, 312617, 625234, 1250468, 1563085, 3126170, 5314489, 5939723, 6252340, 10628978, 11879446, 21257956, 23758892, 26572445, 29698615, 53144890, 59397230, 100975291, 106289780, 118794460, 201950582, 403901164, 504876455, 1009752910, 2019505820]

約数ペア:

[(1, 2019505820), (2, 1009752910), (4, 504876455), (5, 403901164), (10, 201950582), (17, 118794460), (19, 106289780), (20, 100975291), (34, 59397230), (38, 53144890), (68, 29698615), (76, 26572445), (85, 23758892), (95, 21257956), (170, 11879446), (190, 10628978), (323, 6252340), (340, 5939723), (380, 5314489), (646, 3126170), (1292, 1563085), (1615, 1250468), (3230, 625234), (6460, 312617)]