219987.00000000

素因数分解:

$3^2\times 5^1\times {\mathrm{37}}^1\times {\mathrm{43}}^1\times {\mathrm{181}}^1$

素因数の和:272

約数の個数: 48

約数和(自身を含む): 23735712

約数和(自身を除く): 10777017

約数列:

[1, 3, 5, 9, 15, 37, 43, 45, 111, 129, 181, 185, 215, 333, 387, 543, 555, 645, 905, 1591, 1629, 1665, 1935, 2715, 4773, 6697, 7783, 7955, 8145, 14319, 20091, 23349, 23865, 33485, 38915, 60273, 70047, 71595, 100455, 116745, 287971, 301365, 350235, 863913, 1439855, 2591739, 4319565, 12958695]

約数ペア:

[(1, 12958695), (3, 4319565), (5, 2591739), (9, 1439855), (15, 863913), (37, 350235), (43, 301365), (45, 287971), (111, 116745), (129, 100455), (181, 71595), (185, 70047), (215, 60273), (333, 38915), (387, 33485), (543, 23865), (555, 23349), (645, 20091), (905, 14319), (1591, 8145), (1629, 7955), (1665, 7783), (1935, 6697), (2715, 4773)]