21808600

素因数分解:

$2^3\times 5^2\times {\mathrm{11}}^1\times {\mathrm{23}}^1\times {\mathrm{431}}^1$

素因数の和:481

約数の個数: 96

約数和(自身を含む): 57853440

約数和(自身を除く): 36044840

約数列:

[1, 2, 4, 5, 8, 10, 11, 20, 22, 23, 25, 40, 44, 46, 50, 55, 88, 92, 100, 110, 115, 184, 200, 220, 230, 253, 275, 431, 440, 460, 506, 550, 575, 862, 920, 1012, 1100, 1150, 1265, 1724, 2024, 2155, 2200, 2300, 2530, 3448, 4310, 4600, 4741, 5060, 6325, 8620, 9482, 9913, 10120, 10775, 12650, 17240, 18964, 19826, 21550, 23705, 25300, 37928, 39652, 43100, 47410, 49565, 50600, 79304, 86200, 94820, 99130, 109043, 118525, 189640, 198260, 218086, 237050, 247825, 396520, 436172, 474100, 495650, 545215, 872344, 948200, 991300, 1090430, 1982600, 2180860, 2726075, 4361720, 5452150, 10904300, 21808600]

約数ペア:

[(1, 21808600), (2, 10904300), (4, 5452150), (5, 4361720), (8, 2726075), (10, 2180860), (11, 1982600), (20, 1090430), (22, 991300), (23, 948200), (25, 872344), (40, 545215), (44, 495650), (46, 474100), (50, 436172), (55, 396520), (88, 247825), (92, 237050), (100, 218086), (110, 198260), (115, 189640), (184, 118525), (200, 109043), (220, 99130), (230, 94820), (253, 86200), (275, 79304), (431, 50600), (440, 49565), (460, 47410), (506, 43100), (550, 39652), (575, 37928), (862, 25300), (920, 23705), (1012, 21550), (1100, 19826), (1150, 18964), (1265, 17240), (1724, 12650), (2024, 10775), (2155, 10120), (2200, 9913), (2300, 9482), (2530, 8620), (3448, 6325), (4310, 5060), (4600, 4741)]