20636520

素因数分解:

$2^3\times 3^1\times 5^1\times {\mathrm{23}}^1\times {\mathrm{7477}}^1$

素因数の和:7514

約数の個数: 64

約数和(自身を含む): 64609920

約数和(自身を除く): 43973400

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 20, 23, 24, 30, 40, 46, 60, 69, 92, 115, 120, 138, 184, 230, 276, 345, 460, 552, 690, 920, 1380, 2760, 7477, 14954, 22431, 29908, 37385, 44862, 59816, 74770, 89724, 112155, 149540, 171971, 179448, 224310, 299080, 343942, 448620, 515913, 687884, 859855, 897240, 1031826, 1375768, 1719710, 2063652, 2579565, 3439420, 4127304, 5159130, 6878840, 10318260, 20636520]

約数ペア:

[(1, 20636520), (2, 10318260), (3, 6878840), (4, 5159130), (5, 4127304), (6, 3439420), (8, 2579565), (10, 2063652), (12, 1719710), (15, 1375768), (20, 1031826), (23, 897240), (24, 859855), (30, 687884), (40, 515913), (46, 448620), (60, 343942), (69, 299080), (92, 224310), (115, 179448), (120, 171971), (138, 149540), (184, 112155), (230, 89724), (276, 74770), (345, 59816), (460, 44862), (552, 37385), (690, 29908), (920, 22431), (1380, 14954), (2760, 7477)]