18773140

素因数分解:

$2^2\times 5^1\times {\mathrm{19}}^1\times {\mathrm{127}}^1\times {\mathrm{389}}^1$

素因数の和:544

約数の個数: 48

約数和(自身を含む): 41932800

約数和(自身を除く): 23159660

約数列:

[1, 2, 4, 5, 10, 19, 20, 38, 76, 95, 127, 190, 254, 380, 389, 508, 635, 778, 1270, 1556, 1945, 2413, 2540, 3890, 4826, 7391, 7780, 9652, 12065, 14782, 24130, 29564, 36955, 48260, 49403, 73910, 98806, 147820, 197612, 247015, 494030, 938657, 988060, 1877314, 3754628, 4693285, 9386570, 18773140]

約数ペア:

[(1, 18773140), (2, 9386570), (4, 4693285), (5, 3754628), (10, 1877314), (19, 988060), (20, 938657), (38, 494030), (76, 247015), (95, 197612), (127, 147820), (190, 98806), (254, 73910), (380, 49403), (389, 48260), (508, 36955), (635, 29564), (778, 24130), (1270, 14782), (1556, 12065), (1945, 9652), (2413, 7780), (2540, 7391), (3890, 4826)]