81441730

素因数分解:

$2^1\times 5^1\times {\mathrm{17}}^1\times {\mathrm{571}}^1\times {\mathrm{839}}^1$

素因数の和:1434

約数の個数: 32

約数和(自身を含む): 155675520

約数和(自身を除く): 74233790

約数列:

[1, 2, 5, 10, 17, 34, 85, 170, 571, 839, 1142, 1678, 2855, 4195, 5710, 8390, 9707, 14263, 19414, 28526, 48535, 71315, 97070, 142630, 479069, 958138, 2395345, 4790690, 8144173, 16288346, 40720865, 81441730]

約数ペア:

[(1, 81441730), (2, 40720865), (5, 16288346), (10, 8144173), (17, 4790690), (34, 2395345), (85, 958138), (170, 479069), (571, 142630), (839, 97070), (1142, 71315), (1678, 48535), (2855, 28526), (4195, 19414), (5710, 14263), (8390, 9707)]