665610244

素因数分解:

$2^2\times {\mathrm{13}}^1\times {\mathrm{43}}^1\times {\mathrm{109}}^1\times {\mathrm{2731}}^1$

素因数の和:2900

約数の個数: 48

約数和(自身を含む): 1295842240

約数和(自身を除く): 630231996

約数列:

[1, 2, 4, 13, 26, 43, 52, 86, 109, 172, 218, 436, 559, 1118, 1417, 2236, 2731, 2834, 4687, 5462, 5668, 9374, 10924, 18748, 35503, 60931, 71006, 117433, 121862, 142012, 234866, 243724, 297679, 469732, 595358, 1190716, 1526629, 3053258, 3869827, 6106516, 7739654, 12800197, 15479308, 25600394, 51200788, 166402561, 332805122, 665610244]

約数ペア:

[(1, 665610244), (2, 332805122), (4, 166402561), (13, 51200788), (26, 25600394), (43, 15479308), (52, 12800197), (86, 7739654), (109, 6106516), (172, 3869827), (218, 3053258), (436, 1526629), (559, 1190716), (1118, 595358), (1417, 469732), (2236, 297679), (2731, 243724), (2834, 234866), (4687, 142012), (5462, 121862), (5668, 117433), (9374, 71006), (10924, 60931), (18748, 35503)]