20081908

素因数分解:

$2^2\times 7^1\times {\mathrm{11}}^1\times {\mathrm{113}}^1\times {\mathrm{577}}^1$

素因数の和:712

約数の個数: 48

約数和(自身を含む): 44279424

約数和(自身を除く): 24197516

約数列:

[1, 2, 4, 7, 11, 14, 22, 28, 44, 77, 113, 154, 226, 308, 452, 577, 791, 1154, 1243, 1582, 2308, 2486, 3164, 4039, 4972, 6347, 8078, 8701, 12694, 16156, 17402, 25388, 34804, 44429, 65201, 88858, 130402, 177716, 260804, 456407, 717211, 912814, 1434422, 1825628, 2868844, 5020477, 10040954, 20081908]

約数ペア:

[(1, 20081908), (2, 10040954), (4, 5020477), (7, 2868844), (11, 1825628), (14, 1434422), (22, 912814), (28, 717211), (44, 456407), (77, 260804), (113, 177716), (154, 130402), (226, 88858), (308, 65201), (452, 44429), (577, 34804), (791, 25388), (1154, 17402), (1243, 16156), (1582, 12694), (2308, 8701), (2486, 8078), (3164, 6347), (4039, 4972)]