199399995

素因数分解:

$3^3\times 5^1\times {\mathrm{23}}^1\times {\mathrm{149}}^1\times {\mathrm{431}}^1$

素因数の和:617

約数の個数: 64

約数和(自身を含む): 373248000

約数和(自身を除く): 173848005

約数列:

[1, 3, 5, 9, 15, 23, 27, 45, 69, 115, 135, 149, 207, 345, 431, 447, 621, 745, 1035, 1293, 1341, 2155, 2235, 3105, 3427, 3879, 4023, 6465, 6705, 9913, 10281, 11637, 17135, 19395, 20115, 29739, 30843, 49565, 51405, 58185, 64219, 89217, 92529, 148695, 154215, 192657, 267651, 321095, 446085, 462645, 577971, 963285, 1338255, 1477037, 1733913, 2889855, 4431111, 7385185, 8669565, 13293333, 22155555, 39879999, 66466665, 199399995]

約数ペア:

[(1, 199399995), (3, 66466665), (5, 39879999), (9, 22155555), (15, 13293333), (23, 8669565), (27, 7385185), (45, 4431111), (69, 2889855), (115, 1733913), (135, 1477037), (149, 1338255), (207, 963285), (345, 577971), (431, 462645), (447, 446085), (621, 321095), (745, 267651), (1035, 192657), (1293, 154215), (1341, 148695), (2155, 92529), (2235, 89217), (3105, 64219), (3427, 58185), (3879, 51405), (4023, 49565), (6465, 30843), (6705, 29739), (9913, 20115), (10281, 19395), (11637, 17135)]