138630420

素因数分解:

$2^2\times 3^3\times 5^1\times {\mathrm{256723}}^1$

素因数の和:256741

約数の個数: 48

約数和(自身を含む): 431296320

約数和(自身を除く): 292665900

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 27, 30, 36, 45, 54, 60, 90, 108, 135, 180, 270, 540, 256723, 513446, 770169, 1026892, 1283615, 1540338, 2310507, 2567230, 3080676, 3850845, 4621014, 5134460, 6931521, 7701690, 9242028, 11552535, 13863042, 15403380, 23105070, 27726084, 34657605, 46210140, 69315210, 138630420]

約数ペア:

[(1, 138630420), (2, 69315210), (3, 46210140), (4, 34657605), (5, 27726084), (6, 23105070), (9, 15403380), (10, 13863042), (12, 11552535), (15, 9242028), (18, 7701690), (20, 6931521), (27, 5134460), (30, 4621014), (36, 3850845), (45, 3080676), (54, 2567230), (60, 2310507), (90, 1540338), (108, 1283615), (135, 1026892), (180, 770169), (270, 513446), (540, 256723)]