81481930

素因数分解:

$2^1\times 5^1\times {\mathrm{83}}^1\times {\mathrm{127}}^1\times {\mathrm{773}}^1$

素因数の和:990

約数の個数: 32

約数和(自身を含む): 149796864

約数和(自身を除く): 68314934

約数列:

[1, 2, 5, 10, 83, 127, 166, 254, 415, 635, 773, 830, 1270, 1546, 3865, 7730, 10541, 21082, 52705, 64159, 98171, 105410, 128318, 196342, 320795, 490855, 641590, 981710, 8148193, 16296386, 40740965, 81481930]

約数ペア:

[(1, 81481930), (2, 40740965), (5, 16296386), (10, 8148193), (83, 981710), (127, 641590), (166, 490855), (254, 320795), (415, 196342), (635, 128318), (773, 105410), (830, 98171), (1270, 64159), (1546, 52705), (3865, 21082), (7730, 10541)]