157996825

素因数分解:

$5^2\times 7^2\times {\mathrm{101}}^1\times {\mathrm{1277}}^1$

素因数の和:1402

約数の個数: 36

約数和(自身を含む): 230339052

約数和(自身を除く): 72342227

約数列:

[1, 5, 7, 25, 35, 49, 101, 175, 245, 505, 707, 1225, 1277, 2525, 3535, 4949, 6385, 8939, 17675, 24745, 31925, 44695, 62573, 123725, 128977, 223475, 312865, 644885, 902839, 1564325, 3224425, 4514195, 6319873, 22570975, 31599365, 157996825]

約数ペア:

[(1, 157996825), (5, 31599365), (7, 22570975), (25, 6319873), (35, 4514195), (49, 3224425), (101, 1564325), (175, 902839), (245, 644885), (505, 312865), (707, 223475), (1225, 128977), (1277, 123725), (2525, 62573), (3535, 44695), (4949, 31925), (6385, 24745), (8939, 17675)]