20361440

素因数分解:

$2^5\times 5^1\times {\mathrm{11}}^1\times {\mathrm{23}}^1\times {\mathrm{503}}^1$

素因数の和:552

約数の個数: 96

約数和(自身を含む): 54867456

約数和(自身を除く): 34506016

約数列:

[1, 2, 4, 5, 8, 10, 11, 16, 20, 22, 23, 32, 40, 44, 46, 55, 80, 88, 92, 110, 115, 160, 176, 184, 220, 230, 253, 352, 368, 440, 460, 503, 506, 736, 880, 920, 1006, 1012, 1265, 1760, 1840, 2012, 2024, 2515, 2530, 3680, 4024, 4048, 5030, 5060, 5533, 8048, 8096, 10060, 10120, 11066, 11569, 16096, 20120, 20240, 22132, 23138, 27665, 40240, 40480, 44264, 46276, 55330, 57845, 80480, 88528, 92552, 110660, 115690, 127259, 177056, 185104, 221320, 231380, 254518, 370208, 442640, 462760, 509036, 636295, 885280, 925520, 1018072, 1272590, 1851040, 2036144, 2545180, 4072288, 5090360, 10180720, 20361440]

約数ペア:

[(1, 20361440), (2, 10180720), (4, 5090360), (5, 4072288), (8, 2545180), (10, 2036144), (11, 1851040), (16, 1272590), (20, 1018072), (22, 925520), (23, 885280), (32, 636295), (40, 509036), (44, 462760), (46, 442640), (55, 370208), (80, 254518), (88, 231380), (92, 221320), (110, 185104), (115, 177056), (160, 127259), (176, 115690), (184, 110660), (220, 92552), (230, 88528), (253, 80480), (352, 57845), (368, 55330), (440, 46276), (460, 44264), (503, 40480), (506, 40240), (736, 27665), (880, 23138), (920, 22132), (1006, 20240), (1012, 20120), (1265, 16096), (1760, 11569), (1840, 11066), (2012, 10120), (2024, 10060), (2515, 8096), (2530, 8048), (3680, 5533), (4024, 5060), (4048, 5030)]