81600440

素因数分解:

$2^3\times 5^1\times {\mathrm{19}}^2\times {\mathrm{5651}}^1$

素因数の和:5700

約数の個数: 48

約数和(自身を含む): 193807080

約数和(自身を除く): 112206640

約数列:

[1, 2, 4, 5, 8, 10, 19, 20, 38, 40, 76, 95, 152, 190, 361, 380, 722, 760, 1444, 1805, 2888, 3610, 5651, 7220, 11302, 14440, 22604, 28255, 45208, 56510, 107369, 113020, 214738, 226040, 429476, 536845, 858952, 1073690, 2040011, 2147380, 4080022, 4294760, 8160044, 10200055, 16320088, 20400110, 40800220, 81600440]

約数ペア:

[(1, 81600440), (2, 40800220), (4, 20400110), (5, 16320088), (8, 10200055), (10, 8160044), (19, 4294760), (20, 4080022), (38, 2147380), (40, 2040011), (76, 1073690), (95, 858952), (152, 536845), (190, 429476), (361, 226040), (380, 214738), (722, 113020), (760, 107369), (1444, 56510), (1805, 45208), (2888, 28255), (3610, 22604), (5651, 14440), (7220, 11302)]