208794885

素因数分解:

$3^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{37}}^1\times {\mathrm{43}}^1\times {\mathrm{673}}^1$

素因数の和:774

約数の個数: 64

約数和(自身を含む): 378647808

約数和(自身を除く): 169852923

約数列:

[1, 3, 5, 13, 15, 37, 39, 43, 65, 111, 129, 185, 195, 215, 481, 555, 559, 645, 673, 1443, 1591, 1677, 2019, 2405, 2795, 3365, 4773, 7215, 7955, 8385, 8749, 10095, 20683, 23865, 24901, 26247, 28939, 43745, 62049, 74703, 86817, 103415, 124505, 131235, 144695, 310245, 323713, 373515, 376207, 434085, 971139, 1070743, 1128621, 1618565, 1881035, 3212229, 4855695, 5353715, 5643105, 13919659, 16061145, 41758977, 69598295, 208794885]

約数ペア:

[(1, 208794885), (3, 69598295), (5, 41758977), (13, 16061145), (15, 13919659), (37, 5643105), (39, 5353715), (43, 4855695), (65, 3212229), (111, 1881035), (129, 1618565), (185, 1128621), (195, 1070743), (215, 971139), (481, 434085), (555, 376207), (559, 373515), (645, 323713), (673, 310245), (1443, 144695), (1591, 131235), (1677, 124505), (2019, 103415), (2405, 86817), (2795, 74703), (3365, 62049), (4773, 43745), (7215, 28939), (7955, 26247), (8385, 24901), (8749, 23865), (10095, 20683)]