30445660

素因数分解:

$2^2\times 5^1\times 7^2\times {\mathrm{47}}^1\times {\mathrm{661}}^1$

素因数の和:731

約数の個数: 72

約数和(自身を含む): 76071744

約数和(自身を除く): 45626084

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 47, 49, 70, 94, 98, 140, 188, 196, 235, 245, 329, 470, 490, 658, 661, 940, 980, 1316, 1322, 1645, 2303, 2644, 3290, 3305, 4606, 4627, 6580, 6610, 9212, 9254, 11515, 13220, 18508, 23030, 23135, 31067, 32389, 46060, 46270, 62134, 64778, 92540, 124268, 129556, 155335, 161945, 217469, 310670, 323890, 434938, 621340, 647780, 869876, 1087345, 1522283, 2174690, 3044566, 4349380, 6089132, 7611415, 15222830, 30445660]

約数ペア:

[(1, 30445660), (2, 15222830), (4, 7611415), (5, 6089132), (7, 4349380), (10, 3044566), (14, 2174690), (20, 1522283), (28, 1087345), (35, 869876), (47, 647780), (49, 621340), (70, 434938), (94, 323890), (98, 310670), (140, 217469), (188, 161945), (196, 155335), (235, 129556), (245, 124268), (329, 92540), (470, 64778), (490, 62134), (658, 46270), (661, 46060), (940, 32389), (980, 31067), (1316, 23135), (1322, 23030), (1645, 18508), (2303, 13220), (2644, 11515), (3290, 9254), (3305, 9212), (4606, 6610), (4627, 6580)]