128939040

素因数分解:

$2^5\times 3^4\times 5^1\times {\mathrm{9949}}^1$

素因数の和:9976

約数の個数: 120

約数和(自身を含む): 455093100

約数和(自身を除く): 326154060

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, 1620, 2160, 2592, 3240, 4320, 6480, 9949, 12960, 19898, 29847, 39796, 49745, 59694, 79592, 89541, 99490, 119388, 149235, 159184, 179082, 198980, 238776, 268623, 298470, 318368, 358164, 397960, 447705, 477552, 537246, 596940, 716328, 795920, 805869, 895410, 955104, 1074492, 1193880, 1343115, 1432656, 1591840, 1611738, 1790820, 2148984, 2387760, 2686230, 2865312, 3223476, 3581640, 4029345, 4297968, 4775520, 5372460, 6446952, 7163280, 8058690, 8595936, 10744920, 12893904, 14326560, 16117380, 21489840, 25787808, 32234760, 42979680, 64469520, 128939040]

約数ペア:

[(1, 128939040), (2, 64469520), (3, 42979680), (4, 32234760), (5, 25787808), (6, 21489840), (8, 16117380), (9, 14326560), (10, 12893904), (12, 10744920), (15, 8595936), (16, 8058690), (18, 7163280), (20, 6446952), (24, 5372460), (27, 4775520), (30, 4297968), (32, 4029345), (36, 3581640), (40, 3223476), (45, 2865312), (48, 2686230), (54, 2387760), (60, 2148984), (72, 1790820), (80, 1611738), (81, 1591840), (90, 1432656), (96, 1343115), (108, 1193880), (120, 1074492), (135, 955104), (144, 895410), (160, 805869), (162, 795920), (180, 716328), (216, 596940), (240, 537246), (270, 477552), (288, 447705), (324, 397960), (360, 358164), (405, 318368), (432, 298470), (480, 268623), (540, 238776), (648, 198980), (720, 179082), (810, 159184), (864, 149235), (1080, 119388), (1296, 99490), (1440, 89541), (1620, 79592), (2160, 59694), (2592, 49745), (3240, 39796), (4320, 29847), (6480, 19898), (9949, 12960)]