19993920

素因数分解:

$2^6\times 3^1\times 5^1\times {\mathrm{59}}^1\times {\mathrm{353}}^1$

素因数の和:432

約数の個数: 112

約数和(自身を含む): 64739520

約数和(自身を除く): 44745600

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 16, 20, 24, 30, 32, 40, 48, 59, 60, 64, 80, 96, 118, 120, 160, 177, 192, 236, 240, 295, 320, 353, 354, 472, 480, 590, 706, 708, 885, 944, 960, 1059, 1180, 1412, 1416, 1765, 1770, 1888, 2118, 2360, 2824, 2832, 3530, 3540, 3776, 4236, 4720, 5295, 5648, 5664, 7060, 7080, 8472, 9440, 10590, 11296, 11328, 14120, 14160, 16944, 18880, 20827, 21180, 22592, 28240, 28320, 33888, 41654, 42360, 56480, 56640, 62481, 67776, 83308, 84720, 104135, 112960, 124962, 166616, 169440, 208270, 249924, 312405, 333232, 338880, 416540, 499848, 624810, 666464, 833080, 999696, 1249620, 1332928, 1666160, 1999392, 2499240, 3332320, 3998784, 4998480, 6664640, 9996960, 19993920]

約数ペア:

[(1, 19993920), (2, 9996960), (3, 6664640), (4, 4998480), (5, 3998784), (6, 3332320), (8, 2499240), (10, 1999392), (12, 1666160), (15, 1332928), (16, 1249620), (20, 999696), (24, 833080), (30, 666464), (32, 624810), (40, 499848), (48, 416540), (59, 338880), (60, 333232), (64, 312405), (80, 249924), (96, 208270), (118, 169440), (120, 166616), (160, 124962), (177, 112960), (192, 104135), (236, 84720), (240, 83308), (295, 67776), (320, 62481), (353, 56640), (354, 56480), (472, 42360), (480, 41654), (590, 33888), (706, 28320), (708, 28240), (885, 22592), (944, 21180), (960, 20827), (1059, 18880), (1180, 16944), (1412, 14160), (1416, 14120), (1765, 11328), (1770, 11296), (1888, 10590), (2118, 9440), (2360, 8472), (2824, 7080), (2832, 7060), (3530, 5664), (3540, 5648), (3776, 5295), (4236, 4720)]