78212340

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{389}}^1\times {\mathrm{1117}}^1$

素因数の和:1521

約数の個数: 72

約数和(自身を含む): 238066920

約数和(自身を除く): 159854580

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 30, 36, 45, 60, 90, 180, 389, 778, 1117, 1167, 1556, 1945, 2234, 2334, 3351, 3501, 3890, 4468, 4668, 5585, 5835, 6702, 7002, 7780, 10053, 11170, 11670, 13404, 14004, 16755, 17505, 20106, 22340, 23340, 33510, 35010, 40212, 50265, 67020, 70020, 100530, 201060, 434513, 869026, 1303539, 1738052, 2172565, 2607078, 3910617, 4345130, 5214156, 6517695, 7821234, 8690260, 13035390, 15642468, 19553085, 26070780, 39106170, 78212340]

約数ペア:

[(1, 78212340), (2, 39106170), (3, 26070780), (4, 19553085), (5, 15642468), (6, 13035390), (9, 8690260), (10, 7821234), (12, 6517695), (15, 5214156), (18, 4345130), (20, 3910617), (30, 2607078), (36, 2172565), (45, 1738052), (60, 1303539), (90, 869026), (180, 434513), (389, 201060), (778, 100530), (1117, 70020), (1167, 67020), (1556, 50265), (1945, 40212), (2234, 35010), (2334, 33510), (3351, 23340), (3501, 22340), (3890, 20106), (4468, 17505), (4668, 16755), (5585, 14004), (5835, 13404), (6702, 11670), (7002, 11170), (7780, 10053)]