28224700

素因数分解:

$2^2\times 5^2\times 7^1\times {\mathrm{61}}^1\times {\mathrm{661}}^1$

素因数の和:743

約数の個数: 72

約数和(自身を含む): 71252384

約数和(自身を除く): 43027684

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 25, 28, 35, 50, 61, 70, 100, 122, 140, 175, 244, 305, 350, 427, 610, 661, 700, 854, 1220, 1322, 1525, 1708, 2135, 2644, 3050, 3305, 4270, 4627, 6100, 6610, 8540, 9254, 10675, 13220, 16525, 18508, 21350, 23135, 33050, 40321, 42700, 46270, 66100, 80642, 92540, 115675, 161284, 201605, 231350, 282247, 403210, 462700, 564494, 806420, 1008025, 1128988, 1411235, 2016050, 2822470, 4032100, 5644940, 7056175, 14112350, 28224700]

約数ペア:

[(1, 28224700), (2, 14112350), (4, 7056175), (5, 5644940), (7, 4032100), (10, 2822470), (14, 2016050), (20, 1411235), (25, 1128988), (28, 1008025), (35, 806420), (50, 564494), (61, 462700), (70, 403210), (100, 282247), (122, 231350), (140, 201605), (175, 161284), (244, 115675), (305, 92540), (350, 80642), (427, 66100), (610, 46270), (661, 42700), (700, 40321), (854, 33050), (1220, 23135), (1322, 21350), (1525, 18508), (1708, 16525), (2135, 13220), (2644, 10675), (3050, 9254), (3305, 8540), (4270, 6610), (4627, 6100)]