40478746

素因数分解:

$2^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{31}}^1\times {\mathrm{61}}^1\times {\mathrm{139}}^1$

素因数の和:251

約数の個数: 64

約数和(自身を含む): 79994880

約数和(自身を除く): 39516134

約数列:

[1, 2, 7, 11, 14, 22, 31, 61, 62, 77, 122, 139, 154, 217, 278, 341, 427, 434, 671, 682, 854, 973, 1342, 1529, 1891, 1946, 2387, 3058, 3782, 4309, 4697, 4774, 8479, 8618, 9394, 10703, 13237, 16958, 20801, 21406, 26474, 30163, 41602, 47399, 59353, 60326, 93269, 94798, 118706, 145607, 186538, 262849, 291214, 331793, 525698, 652883, 663586, 1305766, 1839943, 2891339, 3679886, 5782678, 20239373, 40478746]

約数ペア:

[(1, 40478746), (2, 20239373), (7, 5782678), (11, 3679886), (14, 2891339), (22, 1839943), (31, 1305766), (61, 663586), (62, 652883), (77, 525698), (122, 331793), (139, 291214), (154, 262849), (217, 186538), (278, 145607), (341, 118706), (427, 94798), (434, 93269), (671, 60326), (682, 59353), (854, 47399), (973, 41602), (1342, 30163), (1529, 26474), (1891, 21406), (1946, 20801), (2387, 16958), (3058, 13237), (3782, 10703), (4309, 9394), (4697, 8618), (4774, 8479)]