20404519905

素因数分解:

$3^1\times 5^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{103}}^1\times {\mathrm{171517}}^1$

素因数の和:171646

約数の個数: 64

約数和(自身を含む): 41098457088

約数和(自身を除く): 20693937183

約数列:

[1, 3, 5, 7, 11, 15, 21, 33, 35, 55, 77, 103, 105, 165, 231, 309, 385, 515, 721, 1133, 1155, 1545, 2163, 3399, 3605, 5665, 7931, 10815, 16995, 23793, 39655, 118965, 171517, 514551, 857585, 1200619, 1886687, 2572755, 3601857, 5660061, 6003095, 9433435, 13206809, 17666251, 18009285, 28300305, 39620427, 52998753, 66034045, 88331255, 123663757, 194328761, 198102135, 264993765, 370991271, 582986283, 618318785, 971643805, 1360301327, 1854956355, 2914931415, 4080903981, 6801506635, 20404519905]

約数ペア:

[(1, 20404519905), (3, 6801506635), (5, 4080903981), (7, 2914931415), (11, 1854956355), (15, 1360301327), (21, 971643805), (33, 618318785), (35, 582986283), (55, 370991271), (77, 264993765), (103, 198102135), (105, 194328761), (165, 123663757), (231, 88331255), (309, 66034045), (385, 52998753), (515, 39620427), (721, 28300305), (1133, 18009285), (1155, 17666251), (1545, 13206809), (2163, 9433435), (3399, 6003095), (3605, 5660061), (5665, 3601857), (7931, 2572755), (10815, 1886687), (16995, 1200619), (23793, 857585), (39655, 514551), (118965, 171517)]