201720880

素因数分解:

$2^4\times 5^1\times {\mathrm{181}}^1\times {\mathrm{13931}}^1$

素因数の和:14125

約数の個数: 40

約数和(自身を含む): 471626064

約数和(自身を除く): 269905184

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 181, 362, 724, 905, 1448, 1810, 2896, 3620, 7240, 13931, 14480, 27862, 55724, 69655, 111448, 139310, 222896, 278620, 557240, 1114480, 2521511, 5043022, 10086044, 12607555, 20172088, 25215110, 40344176, 50430220, 100860440, 201720880]

約数ペア:

[(1, 201720880), (2, 100860440), (4, 50430220), (5, 40344176), (8, 25215110), (10, 20172088), (16, 12607555), (20, 10086044), (40, 5043022), (80, 2521511), (181, 1114480), (362, 557240), (724, 278620), (905, 222896), (1448, 139310), (1810, 111448), (2896, 69655), (3620, 55724), (7240, 27862), (13931, 14480)]