220178980

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{103}}^1\times {\mathrm{15269}}^1$

素因数の和:15388

約数の個数: 48

約数和(自身を含む): 533594880

約数和(自身を除く): 313415900

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 103, 140, 206, 412, 515, 721, 1030, 1442, 2060, 2884, 3605, 7210, 14420, 15269, 30538, 61076, 76345, 106883, 152690, 213766, 305380, 427532, 534415, 1068830, 1572707, 2137660, 3145414, 6290828, 7863535, 11008949, 15727070, 22017898, 31454140, 44035796, 55044745, 110089490, 220178980]

約数ペア:

[(1, 220178980), (2, 110089490), (4, 55044745), (5, 44035796), (7, 31454140), (10, 22017898), (14, 15727070), (20, 11008949), (28, 7863535), (35, 6290828), (70, 3145414), (103, 2137660), (140, 1572707), (206, 1068830), (412, 534415), (515, 427532), (721, 305380), (1030, 213766), (1442, 152690), (2060, 106883), (2884, 76345), (3605, 61076), (7210, 30538), (14420, 15269)]