20826720

素因数分解:

$2^5\times 3^4\times 5^1\times {\mathrm{1607}}^1$

素因数の和:1634

約数の個数: 120

約数和(自身を含む): 73546704

約数和(自身を除く): 52719984

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 16, 18, 20, 24, 27, 30, 32, 36, 40, 45, 48, 54, 60, 72, 80, 81, 90, 96, 108, 120, 135, 144, 160, 162, 180, 216, 240, 270, 288, 324, 360, 405, 432, 480, 540, 648, 720, 810, 864, 1080, 1296, 1440, 1607, 1620, 2160, 2592, 3214, 3240, 4320, 4821, 6428, 6480, 8035, 9642, 12856, 12960, 14463, 16070, 19284, 24105, 25712, 28926, 32140, 38568, 43389, 48210, 51424, 57852, 64280, 72315, 77136, 86778, 96420, 115704, 128560, 130167, 144630, 154272, 173556, 192840, 216945, 231408, 257120, 260334, 289260, 347112, 385680, 433890, 462816, 520668, 578520, 650835, 694224, 771360, 867780, 1041336, 1157040, 1301670, 1388448, 1735560, 2082672, 2314080, 2603340, 3471120, 4165344, 5206680, 6942240, 10413360, 20826720]

約数ペア:

[(1, 20826720), (2, 10413360), (3, 6942240), (4, 5206680), (5, 4165344), (6, 3471120), (8, 2603340), (9, 2314080), (10, 2082672), (12, 1735560), (15, 1388448), (16, 1301670), (18, 1157040), (20, 1041336), (24, 867780), (27, 771360), (30, 694224), (32, 650835), (36, 578520), (40, 520668), (45, 462816), (48, 433890), (54, 385680), (60, 347112), (72, 289260), (80, 260334), (81, 257120), (90, 231408), (96, 216945), (108, 192840), (120, 173556), (135, 154272), (144, 144630), (160, 130167), (162, 128560), (180, 115704), (216, 96420), (240, 86778), (270, 77136), (288, 72315), (324, 64280), (360, 57852), (405, 51424), (432, 48210), (480, 43389), (540, 38568), (648, 32140), (720, 28926), (810, 25712), (864, 24105), (1080, 19284), (1296, 16070), (1440, 14463), (1607, 12960), (1620, 12856), (2160, 9642), (2592, 8035), (3214, 6480), (3240, 6428), (4320, 4821)]