20499105010

素因数分解:

$2^1\times 5^1\times {\mathrm{29}}^1\times {\mathrm{5659}}^1\times {\mathrm{12491}}^1$

素因数の和:18186

約数の個数: 32

約数和(自身を含む): 38180548800

約数和(自身を除く): 17681443790

約数列:

[1, 2, 5, 10, 29, 58, 145, 290, 5659, 11318, 12491, 24982, 28295, 56590, 62455, 124910, 164111, 328222, 362239, 724478, 820555, 1641110, 1811195, 3622390, 70686569, 141373138, 353432845, 706865690, 2049910501, 4099821002, 10249552505, 20499105010]

約数ペア:

[(1, 20499105010), (2, 10249552505), (5, 4099821002), (10, 2049910501), (29, 706865690), (58, 353432845), (145, 141373138), (290, 70686569), (5659, 3622390), (11318, 1811195), (12491, 1641110), (24982, 820555), (28295, 724478), (56590, 362239), (62455, 328222), (124910, 164111)]