19672100

素因数分解:

$2^2\times 5^2\times 7^1\times {\mathrm{157}}^1\times {\mathrm{179}}^1$

素因数の和:357

約数の個数: 72

約数和(自身を含む): 49371840

約数和(自身を除く): 29699740

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 25, 28, 35, 50, 70, 100, 140, 157, 175, 179, 314, 350, 358, 628, 700, 716, 785, 895, 1099, 1253, 1570, 1790, 2198, 2506, 3140, 3580, 3925, 4396, 4475, 5012, 5495, 6265, 7850, 8950, 10990, 12530, 15700, 17900, 21980, 25060, 27475, 28103, 31325, 54950, 56206, 62650, 109900, 112412, 125300, 140515, 196721, 281030, 393442, 562060, 702575, 786884, 983605, 1405150, 1967210, 2810300, 3934420, 4918025, 9836050, 19672100]

約数ペア:

[(1, 19672100), (2, 9836050), (4, 4918025), (5, 3934420), (7, 2810300), (10, 1967210), (14, 1405150), (20, 983605), (25, 786884), (28, 702575), (35, 562060), (50, 393442), (70, 281030), (100, 196721), (140, 140515), (157, 125300), (175, 112412), (179, 109900), (314, 62650), (350, 56206), (358, 54950), (628, 31325), (700, 28103), (716, 27475), (785, 25060), (895, 21980), (1099, 17900), (1253, 15700), (1570, 12530), (1790, 10990), (2198, 8950), (2506, 7850), (3140, 6265), (3580, 5495), (3925, 5012), (4396, 4475)]