7777420

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{73}}^1\times {\mathrm{761}}^1$

素因数の和:850

約数の個数: 48

約数和(自身を含む): 18946368

約数和(自身を除く): 11168948

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 73, 140, 146, 292, 365, 511, 730, 761, 1022, 1460, 1522, 2044, 2555, 3044, 3805, 5110, 5327, 7610, 10220, 10654, 15220, 21308, 26635, 53270, 55553, 106540, 111106, 222212, 277765, 388871, 555530, 777742, 1111060, 1555484, 1944355, 3888710, 7777420]

約数ペア:

[(1, 7777420), (2, 3888710), (4, 1944355), (5, 1555484), (7, 1111060), (10, 777742), (14, 555530), (20, 388871), (28, 277765), (35, 222212), (70, 111106), (73, 106540), (140, 55553), (146, 53270), (292, 26635), (365, 21308), (511, 15220), (730, 10654), (761, 10220), (1022, 7610), (1460, 5327), (1522, 5110), (2044, 3805), (2555, 3044)]