20187120

素因数分解:

$2^4\times 3^1\times 5^1\times {\mathrm{19}}^2\times {\mathrm{233}}^1$

素因数の和:287

約数の個数: 120

約数和(自身を含む): 66330576

約数和(自身を除く): 46143456

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 16, 19, 20, 24, 30, 38, 40, 48, 57, 60, 76, 80, 95, 114, 120, 152, 190, 228, 233, 240, 285, 304, 361, 380, 456, 466, 570, 699, 722, 760, 912, 932, 1083, 1140, 1165, 1398, 1444, 1520, 1805, 1864, 2166, 2280, 2330, 2796, 2888, 3495, 3610, 3728, 4332, 4427, 4560, 4660, 5415, 5592, 5776, 6990, 7220, 8664, 8854, 9320, 10830, 11184, 13281, 13980, 14440, 17328, 17708, 18640, 21660, 22135, 26562, 27960, 28880, 35416, 43320, 44270, 53124, 55920, 66405, 70832, 84113, 86640, 88540, 106248, 132810, 168226, 177080, 212496, 252339, 265620, 336452, 354160, 420565, 504678, 531240, 672904, 841130, 1009356, 1062480, 1261695, 1345808, 1682260, 2018712, 2523390, 3364520, 4037424, 5046780, 6729040, 10093560, 20187120]

約数ペア:

[(1, 20187120), (2, 10093560), (3, 6729040), (4, 5046780), (5, 4037424), (6, 3364520), (8, 2523390), (10, 2018712), (12, 1682260), (15, 1345808), (16, 1261695), (19, 1062480), (20, 1009356), (24, 841130), (30, 672904), (38, 531240), (40, 504678), (48, 420565), (57, 354160), (60, 336452), (76, 265620), (80, 252339), (95, 212496), (114, 177080), (120, 168226), (152, 132810), (190, 106248), (228, 88540), (233, 86640), (240, 84113), (285, 70832), (304, 66405), (361, 55920), (380, 53124), (456, 44270), (466, 43320), (570, 35416), (699, 28880), (722, 27960), (760, 26562), (912, 22135), (932, 21660), (1083, 18640), (1140, 17708), (1165, 17328), (1398, 14440), (1444, 13980), (1520, 13281), (1805, 11184), (1864, 10830), (2166, 9320), (2280, 8854), (2330, 8664), (2796, 7220), (2888, 6990), (3495, 5776), (3610, 5592), (3728, 5415), (4332, 4660), (4427, 4560)]