1288897695

素因数分解:

$3^2\times 5^1\times {\mathrm{31}}^1\times {\mathrm{43}}^1\times {\mathrm{21487}}^1$

素因数の和:21572

約数の個数: 48

約数和(自身を含む): 2359898112

約数和(自身を除く): 1071000417

約数列:

[1, 3, 5, 9, 15, 31, 43, 45, 93, 129, 155, 215, 279, 387, 465, 645, 1333, 1395, 1935, 3999, 6665, 11997, 19995, 21487, 59985, 64461, 107435, 193383, 322305, 666097, 923941, 966915, 1998291, 2771823, 3330485, 4619705, 5994873, 8315469, 9991455, 13859115, 28642171, 29974365, 41577345, 85926513, 143210855, 257779539, 429632565, 1288897695]

約数ペア:

[(1, 1288897695), (3, 429632565), (5, 257779539), (9, 143210855), (15, 85926513), (31, 41577345), (43, 29974365), (45, 28642171), (93, 13859115), (129, 9991455), (155, 8315469), (215, 5994873), (279, 4619705), (387, 3330485), (465, 2771823), (645, 1998291), (1333, 966915), (1395, 923941), (1935, 666097), (3999, 322305), (6665, 193383), (11997, 107435), (19995, 64461), (21487, 59985)]