28488680

素因数分解:

$2^3\times 5^1\times {\mathrm{11}}^1\times {\mathrm{64747}}^1$

素因数の和:64769

約数の個数: 32

約数和(自身を含む): 69927840

約数和(自身を除く): 41439160

約数列:

[1, 2, 4, 5, 8, 10, 11, 20, 22, 40, 44, 55, 88, 110, 220, 440, 64747, 129494, 258988, 323735, 517976, 647470, 712217, 1294940, 1424434, 2589880, 2848868, 3561085, 5697736, 7122170, 14244340, 28488680]

約数ペア:

[(1, 28488680), (2, 14244340), (4, 7122170), (5, 5697736), (8, 3561085), (10, 2848868), (11, 2589880), (20, 1424434), (22, 1294940), (40, 712217), (44, 647470), (55, 517976), (88, 323735), (110, 258988), (220, 129494), (440, 64747)]