1389508540

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{223}}^1\times {\mathrm{44507}}^1$

素因数の和:44746

約数の個数: 48

約数和(自身を含む): 3349850112

約数和(自身を除く): 1960341572

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 140, 223, 446, 892, 1115, 1561, 2230, 3122, 4460, 6244, 7805, 15610, 31220, 44507, 89014, 178028, 222535, 311549, 445070, 623098, 890140, 1246196, 1557745, 3115490, 6230980, 9925061, 19850122, 39700244, 49625305, 69475427, 99250610, 138950854, 198501220, 277901708, 347377135, 694754270, 1389508540]

約数ペア:

[(1, 1389508540), (2, 694754270), (4, 347377135), (5, 277901708), (7, 198501220), (10, 138950854), (14, 99250610), (20, 69475427), (28, 49625305), (35, 39700244), (70, 19850122), (140, 9925061), (223, 6230980), (446, 3115490), (892, 1557745), (1115, 1246196), (1561, 890140), (2230, 623098), (3122, 445070), (4460, 311549), (6244, 222535), (7805, 178028), (15610, 89014), (31220, 44507)]