19737760

素因数分解:

$2^5\times 5^1\times 7^1\times {\mathrm{17623}}^1$

素因数の和:17645

約数の個数: 48

約数和(自身を含む): 53294976

約数和(自身を除く): 33557216

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 32, 35, 40, 56, 70, 80, 112, 140, 160, 224, 280, 560, 1120, 17623, 35246, 70492, 88115, 123361, 140984, 176230, 246722, 281968, 352460, 493444, 563936, 616805, 704920, 986888, 1233610, 1409840, 1973776, 2467220, 2819680, 3947552, 4934440, 9868880, 19737760]

約数ペア:

[(1, 19737760), (2, 9868880), (4, 4934440), (5, 3947552), (7, 2819680), (8, 2467220), (10, 1973776), (14, 1409840), (16, 1233610), (20, 986888), (28, 704920), (32, 616805), (35, 563936), (40, 493444), (56, 352460), (70, 281968), (80, 246722), (112, 176230), (140, 140984), (160, 123361), (224, 88115), (280, 70492), (560, 35246), (1120, 17623)]