19839540

素因数分解:

$2^2\times 3^1\times 5^1\times 7^1\times {\mathrm{47237}}^1$

素因数の和:47256

約数の個数: 48

約数和(自身を含む): 63487872

約数和(自身を除く): 43648332

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, 47237, 94474, 141711, 188948, 236185, 283422, 330659, 472370, 566844, 661318, 708555, 944740, 991977, 1322636, 1417110, 1653295, 1983954, 2834220, 3306590, 3967908, 4959885, 6613180, 9919770, 19839540]

約数ペア:

[(1, 19839540), (2, 9919770), (3, 6613180), (4, 4959885), (5, 3967908), (6, 3306590), (7, 2834220), (10, 1983954), (12, 1653295), (14, 1417110), (15, 1322636), (20, 991977), (21, 944740), (28, 708555), (30, 661318), (35, 566844), (42, 472370), (60, 330659), (70, 283422), (84, 236185), (105, 188948), (140, 141711), (210, 94474), (420, 47237)]