7854420

素因数分解:

$2^2\times 3^1\times 5^1\times 7^1\times {\mathrm{18701}}^1$

素因数の和:18720

約数の個数: 48

約数和(自身を含む): 25135488

約数和(自身を除く): 17281068

約数列:

[1, 2, 3, 4, 5, 6, 7, 10, 12, 14, 15, 20, 21, 28, 30, 35, 42, 60, 70, 84, 105, 140, 210, 420, 18701, 37402, 56103, 74804, 93505, 112206, 130907, 187010, 224412, 261814, 280515, 374020, 392721, 523628, 561030, 654535, 785442, 1122060, 1309070, 1570884, 1963605, 2618140, 3927210, 7854420]

約数ペア:

[(1, 7854420), (2, 3927210), (3, 2618140), (4, 1963605), (5, 1570884), (6, 1309070), (7, 1122060), (10, 785442), (12, 654535), (14, 561030), (15, 523628), (20, 392721), (21, 374020), (28, 280515), (30, 261814), (35, 224412), (42, 187010), (60, 130907), (70, 112206), (84, 93505), (105, 74804), (140, 56103), (210, 37402), (420, 18701)]