20305504

素因数分解:

$2^5\times {\mathrm{23}}^1\times {\mathrm{47}}^1\times {\mathrm{587}}^1$

素因数の和:667

約数の個数: 48

約数和(自身を含む): 42674688

約数和(自身を除く): 22369184

約数列:

[1, 2, 4, 8, 16, 23, 32, 46, 47, 92, 94, 184, 188, 368, 376, 587, 736, 752, 1081, 1174, 1504, 2162, 2348, 4324, 4696, 8648, 9392, 13501, 17296, 18784, 27002, 27589, 34592, 54004, 55178, 108008, 110356, 216016, 220712, 432032, 441424, 634547, 882848, 1269094, 2538188, 5076376, 10152752, 20305504]

約数ペア:

[(1, 20305504), (2, 10152752), (4, 5076376), (8, 2538188), (16, 1269094), (23, 882848), (32, 634547), (46, 441424), (47, 432032), (92, 220712), (94, 216016), (184, 110356), (188, 108008), (368, 55178), (376, 54004), (587, 34592), (736, 27589), (752, 27002), (1081, 18784), (1174, 17296), (1504, 13501), (2162, 9392), (2348, 8648), (4324, 4696)]