21206000

素因数分解:

$2^4\times 5^3\times {\mathrm{23}}^1\times {\mathrm{461}}^1$

素因数の和:507

約数の個数: 80

約数和(自身を含む): 53621568

約数和(自身を除く): 32415568

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 23, 25, 40, 46, 50, 80, 92, 100, 115, 125, 184, 200, 230, 250, 368, 400, 460, 461, 500, 575, 920, 922, 1000, 1150, 1840, 1844, 2000, 2300, 2305, 2875, 3688, 4600, 4610, 5750, 7376, 9200, 9220, 10603, 11500, 11525, 18440, 21206, 23000, 23050, 36880, 42412, 46000, 46100, 53015, 57625, 84824, 92200, 106030, 115250, 169648, 184400, 212060, 230500, 265075, 424120, 461000, 530150, 848240, 922000, 1060300, 1325375, 2120600, 2650750, 4241200, 5301500, 10603000, 21206000]

約数ペア:

[(1, 21206000), (2, 10603000), (4, 5301500), (5, 4241200), (8, 2650750), (10, 2120600), (16, 1325375), (20, 1060300), (23, 922000), (25, 848240), (40, 530150), (46, 461000), (50, 424120), (80, 265075), (92, 230500), (100, 212060), (115, 184400), (125, 169648), (184, 115250), (200, 106030), (230, 92200), (250, 84824), (368, 57625), (400, 53015), (460, 46100), (461, 46000), (500, 42412), (575, 36880), (920, 23050), (922, 23000), (1000, 21206), (1150, 18440), (1840, 11525), (1844, 11500), (2000, 10603), (2300, 9220), (2305, 9200), (2875, 7376), (3688, 5750), (4600, 4610)]