19760860

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{191}}^1\times {\mathrm{739}}^1$

素因数の和:946

約数の個数: 48

約数和(自身を含む): 47738880

約数和(自身を除く): 27978020

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 140, 191, 382, 739, 764, 955, 1337, 1478, 1910, 2674, 2956, 3695, 3820, 5173, 5348, 6685, 7390, 10346, 13370, 14780, 20692, 25865, 26740, 51730, 103460, 141149, 282298, 564596, 705745, 988043, 1411490, 1976086, 2822980, 3952172, 4940215, 9880430, 19760860]

約数ペア:

[(1, 19760860), (2, 9880430), (4, 4940215), (5, 3952172), (7, 2822980), (10, 1976086), (14, 1411490), (20, 988043), (28, 705745), (35, 564596), (70, 282298), (140, 141149), (191, 103460), (382, 51730), (739, 26740), (764, 25865), (955, 20692), (1337, 14780), (1478, 13370), (1910, 10346), (2674, 7390), (2956, 6685), (3695, 5348), (3820, 5173)]