20198300

素因数分解:

$2^2\times 5^2\times {\mathrm{37}}^1\times {\mathrm{53}}^1\times {\mathrm{103}}^1$

素因数の和:207

約数の個数: 72

約数和(自身を含む): 46309536

約数和(自身を除く): 26111236

約数列:

[1, 2, 4, 5, 10, 20, 25, 37, 50, 53, 74, 100, 103, 106, 148, 185, 206, 212, 265, 370, 412, 515, 530, 740, 925, 1030, 1060, 1325, 1850, 1961, 2060, 2575, 2650, 3700, 3811, 3922, 5150, 5300, 5459, 7622, 7844, 9805, 10300, 10918, 15244, 19055, 19610, 21836, 27295, 38110, 39220, 49025, 54590, 76220, 95275, 98050, 109180, 136475, 190550, 196100, 201983, 272950, 381100, 403966, 545900, 807932, 1009915, 2019830, 4039660, 5049575, 10099150, 20198300]

約数ペア:

[(1, 20198300), (2, 10099150), (4, 5049575), (5, 4039660), (10, 2019830), (20, 1009915), (25, 807932), (37, 545900), (50, 403966), (53, 381100), (74, 272950), (100, 201983), (103, 196100), (106, 190550), (148, 136475), (185, 109180), (206, 98050), (212, 95275), (265, 76220), (370, 54590), (412, 49025), (515, 39220), (530, 38110), (740, 27295), (925, 21836), (1030, 19610), (1060, 19055), (1325, 15244), (1850, 10918), (1961, 10300), (2060, 9805), (2575, 7844), (2650, 7622), (3700, 5459), (3811, 5300), (3922, 5150)]