638715

素因数分解:

$3^1\times 5^1\times 7^2\times {\mathrm{11}}^1\times {\mathrm{79}}^1$

素因数の和:112

約数の個数: 48

約数和(自身を含む): 1313280

約数和(自身を除く): 674565

約数列:

[1, 3, 5, 7, 11, 15, 21, 33, 35, 49, 55, 77, 79, 105, 147, 165, 231, 237, 245, 385, 395, 539, 553, 735, 869, 1155, 1185, 1617, 1659, 2607, 2695, 2765, 3871, 4345, 6083, 8085, 8295, 11613, 13035, 18249, 19355, 30415, 42581, 58065, 91245, 127743, 212905, 638715]

約数ペア:

[(1, 638715), (3, 212905), (5, 127743), (7, 91245), (11, 58065), (15, 42581), (21, 30415), (33, 19355), (35, 18249), (49, 13035), (55, 11613), (77, 8295), (79, 8085), (105, 6083), (147, 4345), (165, 3871), (231, 2765), (237, 2695), (245, 2607), (385, 1659), (395, 1617), (539, 1185), (553, 1155), (735, 869)]