20898960

素因数分解:

$2^4\times 3^1\times 5^1\times {\mathrm{31}}^1\times {\mathrm{53}}^2$

素因数の和:153

約数の個数: 120

約数和(自身を含む): 68162304

約数和(自身を除く): 47263344

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 16, 20, 24, 30, 31, 40, 48, 53, 60, 62, 80, 93, 106, 120, 124, 155, 159, 186, 212, 240, 248, 265, 310, 318, 372, 424, 465, 496, 530, 620, 636, 744, 795, 848, 930, 1060, 1240, 1272, 1488, 1590, 1643, 1860, 2120, 2480, 2544, 2809, 3180, 3286, 3720, 4240, 4929, 5618, 6360, 6572, 7440, 8215, 8427, 9858, 11236, 12720, 13144, 14045, 16430, 16854, 19716, 22472, 24645, 26288, 28090, 32860, 33708, 39432, 42135, 44944, 49290, 56180, 65720, 67416, 78864, 84270, 87079, 98580, 112360, 131440, 134832, 168540, 174158, 197160, 224720, 261237, 337080, 348316, 394320, 435395, 522474, 674160, 696632, 870790, 1044948, 1306185, 1393264, 1741580, 2089896, 2612370, 3483160, 4179792, 5224740, 6966320, 10449480, 20898960]

約数ペア:

[(1, 20898960), (2, 10449480), (3, 6966320), (4, 5224740), (5, 4179792), (6, 3483160), (8, 2612370), (10, 2089896), (12, 1741580), (15, 1393264), (16, 1306185), (20, 1044948), (24, 870790), (30, 696632), (31, 674160), (40, 522474), (48, 435395), (53, 394320), (60, 348316), (62, 337080), (80, 261237), (93, 224720), (106, 197160), (120, 174158), (124, 168540), (155, 134832), (159, 131440), (186, 112360), (212, 98580), (240, 87079), (248, 84270), (265, 78864), (310, 67416), (318, 65720), (372, 56180), (424, 49290), (465, 44944), (496, 42135), (530, 39432), (620, 33708), (636, 32860), (744, 28090), (795, 26288), (848, 24645), (930, 22472), (1060, 19716), (1240, 16854), (1272, 16430), (1488, 14045), (1590, 13144), (1643, 12720), (1860, 11236), (2120, 9858), (2480, 8427), (2544, 8215), (2809, 7440), (3180, 6572), (3286, 6360), (3720, 5618), (4240, 4929)]