21489120

素因数分解:

$2^5\times 3^2\times 5^1\times {\mathrm{14923}}^1$

素因数の和:14944

約数の個数: 72

約数和(自身を含む): 73336536

約数和(自身を除く): 51847416

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 16, 18, 20, 24, 30, 32, 36, 40, 45, 48, 60, 72, 80, 90, 96, 120, 144, 160, 180, 240, 288, 360, 480, 720, 1440, 14923, 29846, 44769, 59692, 74615, 89538, 119384, 134307, 149230, 179076, 223845, 238768, 268614, 298460, 358152, 447690, 477536, 537228, 596920, 671535, 716304, 895380, 1074456, 1193840, 1343070, 1432608, 1790760, 2148912, 2387680, 2686140, 3581520, 4297824, 5372280, 7163040, 10744560, 21489120]

約数ペア:

[(1, 21489120), (2, 10744560), (3, 7163040), (4, 5372280), (5, 4297824), (6, 3581520), (8, 2686140), (9, 2387680), (10, 2148912), (12, 1790760), (15, 1432608), (16, 1343070), (18, 1193840), (20, 1074456), (24, 895380), (30, 716304), (32, 671535), (36, 596920), (40, 537228), (45, 477536), (48, 447690), (60, 358152), (72, 298460), (80, 268614), (90, 238768), (96, 223845), (120, 179076), (144, 149230), (160, 134307), (180, 119384), (240, 89538), (288, 74615), (360, 59692), (480, 44769), (720, 29846), (1440, 14923)]