199982405

素因数分解:

$5^1\times 7^1\times {\mathrm{29}}^1\times {\mathrm{73}}^1\times {\mathrm{2699}}^1$

素因数の和:2813

約数の個数: 32

約数和(自身を含む): 287712000

約数和(自身を除く): 87729595

約数列:

[1, 5, 7, 29, 35, 73, 145, 203, 365, 511, 1015, 2117, 2555, 2699, 10585, 13495, 14819, 18893, 74095, 78271, 94465, 197027, 391355, 547897, 985135, 1379189, 2739485, 5713783, 6895945, 28568915, 39996481, 199982405]

約数ペア:

[(1, 199982405), (5, 39996481), (7, 28568915), (29, 6895945), (35, 5713783), (73, 2739485), (145, 1379189), (203, 985135), (365, 547897), (511, 391355), (1015, 197027), (2117, 94465), (2555, 78271), (2699, 74095), (10585, 18893), (13495, 14819)]