278313280

素因数分解:

$2^6\times 5^1\times 7^1\times {\mathrm{124247}}^1$

素因数の和:124271

約数の個数: 56

約数和(自身を含む): 757415808

約数和(自身を除く): 479102528

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 32, 35, 40, 56, 64, 70, 80, 112, 140, 160, 224, 280, 320, 448, 560, 1120, 2240, 124247, 248494, 496988, 621235, 869729, 993976, 1242470, 1739458, 1987952, 2484940, 3478916, 3975904, 4348645, 4969880, 6957832, 7951808, 8697290, 9939760, 13915664, 17394580, 19879520, 27831328, 34789160, 39759040, 55662656, 69578320, 139156640, 278313280]

約数ペア:

[(1, 278313280), (2, 139156640), (4, 69578320), (5, 55662656), (7, 39759040), (8, 34789160), (10, 27831328), (14, 19879520), (16, 17394580), (20, 13915664), (28, 9939760), (32, 8697290), (35, 7951808), (40, 6957832), (56, 4969880), (64, 4348645), (70, 3975904), (80, 3478916), (112, 2484940), (140, 1987952), (160, 1739458), (224, 1242470), (280, 993976), (320, 869729), (448, 621235), (560, 496988), (1120, 248494), (2240, 124247)]