7828100

素因数分解:

$2^2\times 5^2\times 7^1\times {\mathrm{53}}^1\times {\mathrm{211}}^1$

素因数の和:285

約数の個数: 72

約数和(自身を含む): 19873728

約数和(自身を除く): 12045628

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 25, 28, 35, 50, 53, 70, 100, 106, 140, 175, 211, 212, 265, 350, 371, 422, 530, 700, 742, 844, 1055, 1060, 1325, 1477, 1484, 1855, 2110, 2650, 2954, 3710, 4220, 5275, 5300, 5908, 7385, 7420, 9275, 10550, 11183, 14770, 18550, 21100, 22366, 29540, 36925, 37100, 44732, 55915, 73850, 78281, 111830, 147700, 156562, 223660, 279575, 313124, 391405, 559150, 782810, 1118300, 1565620, 1957025, 3914050, 7828100]

約数ペア:

[(1, 7828100), (2, 3914050), (4, 1957025), (5, 1565620), (7, 1118300), (10, 782810), (14, 559150), (20, 391405), (25, 313124), (28, 279575), (35, 223660), (50, 156562), (53, 147700), (70, 111830), (100, 78281), (106, 73850), (140, 55915), (175, 44732), (211, 37100), (212, 36925), (265, 29540), (350, 22366), (371, 21100), (422, 18550), (530, 14770), (700, 11183), (742, 10550), (844, 9275), (1055, 7420), (1060, 7385), (1325, 5908), (1477, 5300), (1484, 5275), (1855, 4220), (2110, 3710), (2650, 2954)]