78239722

素因数分解:

$2^1\times {\mathrm{11}}^1\times {\mathrm{31}}^1\times {\mathrm{89}}^1\times {\mathrm{1289}}^1$

素因数の和:1422

約数の個数: 32

約数和(自身を含む): 133747200

約数和(自身を除く): 55507478

約数列:

[1, 2, 11, 22, 31, 62, 89, 178, 341, 682, 979, 1289, 1958, 2578, 2759, 5518, 14179, 28358, 30349, 39959, 60698, 79918, 114721, 229442, 439549, 879098, 1261931, 2523862, 3556351, 7112702, 39119861, 78239722]

約数ペア:

[(1, 78239722), (2, 39119861), (11, 7112702), (22, 3556351), (31, 2523862), (62, 1261931), (89, 879098), (178, 439549), (341, 229442), (682, 114721), (979, 79918), (1289, 60698), (1958, 39959), (2578, 30349), (2759, 28358), (5518, 14179)]