21810480

素因数分解:

$2^4\times 3^1\times 5^1\times {\mathrm{19}}^1\times {\mathrm{4783}}^1$

素因数の和:4818

約数の個数: 80

約数和(自身を含む): 71185920

約数和(自身を除く): 49375440

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, 240, 285, 304, 380, 456, 570, 760, 912, 1140, 1520, 2280, 4560, 4783, 9566, 14349, 19132, 23915, 28698, 38264, 47830, 57396, 71745, 76528, 90877, 95660, 114792, 143490, 181754, 191320, 229584, 272631, 286980, 363508, 382640, 454385, 545262, 573960, 727016, 908770, 1090524, 1147920, 1363155, 1454032, 1817540, 2181048, 2726310, 3635080, 4362096, 5452620, 7270160, 10905240, 21810480]

約数ペア:

[(1, 21810480), (2, 10905240), (3, 7270160), (4, 5452620), (5, 4362096), (6, 3635080), (8, 2726310), (10, 2181048), (12, 1817540), (15, 1454032), (16, 1363155), (19, 1147920), (20, 1090524), (24, 908770), (30, 727016), (38, 573960), (40, 545262), (48, 454385), (57, 382640), (60, 363508), (76, 286980), (80, 272631), (95, 229584), (114, 191320), (120, 181754), (152, 143490), (190, 114792), (228, 95660), (240, 90877), (285, 76528), (304, 71745), (380, 57396), (456, 47830), (570, 38264), (760, 28698), (912, 23915), (1140, 19132), (1520, 14349), (2280, 9566), (4560, 4783)]