28321040

素因数分解:

$2^4\times 5^1\times {\mathrm{11}}^1\times {\mathrm{32183}}^1$

素因数の和:32207

約数の個数: 40

約数和(自身を含む): 71834688

約数和(自身を除く): 43513648

約数列:

[1, 2, 4, 5, 8, 10, 11, 16, 20, 22, 40, 44, 55, 80, 88, 110, 176, 220, 440, 880, 32183, 64366, 128732, 160915, 257464, 321830, 354013, 514928, 643660, 708026, 1287320, 1416052, 1770065, 2574640, 2832104, 3540130, 5664208, 7080260, 14160520, 28321040]

約数ペア:

[(1, 28321040), (2, 14160520), (4, 7080260), (5, 5664208), (8, 3540130), (10, 2832104), (11, 2574640), (16, 1770065), (20, 1416052), (22, 1287320), (40, 708026), (44, 643660), (55, 514928), (80, 354013), (88, 321830), (110, 257464), (176, 160915), (220, 128732), (440, 64366), (880, 32183)]