19610000

素因数分解:

$2^4\times 5^4\times {\mathrm{37}}^1\times {\mathrm{53}}^1$

素因数の和:118

約数の個数: 100

約数和(自身を含む): 49680972

約数和(自身を除く): 30070972

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 25, 37, 40, 50, 53, 74, 80, 100, 106, 125, 148, 185, 200, 212, 250, 265, 296, 370, 400, 424, 500, 530, 592, 625, 740, 848, 925, 1000, 1060, 1250, 1325, 1480, 1850, 1961, 2000, 2120, 2500, 2650, 2960, 3700, 3922, 4240, 4625, 5000, 5300, 6625, 7400, 7844, 9250, 9805, 10000, 10600, 13250, 14800, 15688, 18500, 19610, 21200, 23125, 26500, 31376, 33125, 37000, 39220, 46250, 49025, 53000, 66250, 74000, 78440, 92500, 98050, 106000, 132500, 156880, 185000, 196100, 245125, 265000, 370000, 392200, 490250, 530000, 784400, 980500, 1225625, 1961000, 2451250, 3922000, 4902500, 9805000, 19610000]

約数ペア:

[(1, 19610000), (2, 9805000), (4, 4902500), (5, 3922000), (8, 2451250), (10, 1961000), (16, 1225625), (20, 980500), (25, 784400), (37, 530000), (40, 490250), (50, 392200), (53, 370000), (74, 265000), (80, 245125), (100, 196100), (106, 185000), (125, 156880), (148, 132500), (185, 106000), (200, 98050), (212, 92500), (250, 78440), (265, 74000), (296, 66250), (370, 53000), (400, 49025), (424, 46250), (500, 39220), (530, 37000), (592, 33125), (625, 31376), (740, 26500), (848, 23125), (925, 21200), (1000, 19610), (1060, 18500), (1250, 15688), (1325, 14800), (1480, 13250), (1850, 10600), (1961, 10000), (2000, 9805), (2120, 9250), (2500, 7844), (2650, 7400), (2960, 6625), (3700, 5300), (3922, 5000), (4240, 4625)]