689008880

素因数分解:

$2^4\times 5^1\times 7^1\times {\mathrm{1230373}}^1$

素因数の和:1230393

約数の個数: 40

約数和(自身を含む): 1830796512

約数和(自身を除く): 1141787632

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 35, 40, 56, 70, 80, 112, 140, 280, 560, 1230373, 2460746, 4921492, 6151865, 8612611, 9842984, 12303730, 17225222, 19685968, 24607460, 34450444, 43063055, 49214920, 68900888, 86126110, 98429840, 137801776, 172252220, 344504440, 689008880]

約数ペア:

[(1, 689008880), (2, 344504440), (4, 172252220), (5, 137801776), (7, 98429840), (8, 86126110), (10, 68900888), (14, 49214920), (16, 43063055), (20, 34450444), (28, 24607460), (35, 19685968), (40, 17225222), (56, 12303730), (70, 9842984), (80, 8612611), (112, 6151865), (140, 4921492), (280, 2460746), (560, 1230373)]