1142320

素因数分解:

$2^4\times 5^1\times {\mathrm{109}}^1\times {\mathrm{131}}^1$

素因数の和:253

約数の個数: 40

約数和(自身を含む): 2700720

約数和(自身を除く): 1558400

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 109, 131, 218, 262, 436, 524, 545, 655, 872, 1048, 1090, 1310, 1744, 2096, 2180, 2620, 4360, 5240, 8720, 10480, 14279, 28558, 57116, 71395, 114232, 142790, 228464, 285580, 571160, 1142320]

約数ペア:

[(1, 1142320), (2, 571160), (4, 285580), (5, 228464), (8, 142790), (10, 114232), (16, 71395), (20, 57116), (40, 28558), (80, 14279), (109, 10480), (131, 8720), (218, 5240), (262, 4360), (436, 2620), (524, 2180), (545, 2096), (655, 1744), (872, 1310), (1048, 1090)]