20949540

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{73}}^1\times {\mathrm{4783}}^1$

素因数の和:4868

約数の個数: 48

約数和(自身を含む): 59474688

約数和(自身を除く): 38525148

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 15, 20, 30, 60, 73, 146, 219, 292, 365, 438, 730, 876, 1095, 1460, 2190, 4380, 4783, 9566, 14349, 19132, 23915, 28698, 47830, 57396, 71745, 95660, 143490, 286980, 349159, 698318, 1047477, 1396636, 1745795, 2094954, 3491590, 4189908, 5237385, 6983180, 10474770, 20949540]

約数ペア:

[(1, 20949540), (2, 10474770), (3, 6983180), (4, 5237385), (5, 4189908), (6, 3491590), (10, 2094954), (12, 1745795), (15, 1396636), (20, 1047477), (30, 698318), (60, 349159), (73, 286980), (146, 143490), (219, 95660), (292, 71745), (365, 57396), (438, 47830), (730, 28698), (876, 23915), (1095, 19132), (1460, 14349), (2190, 9566), (4380, 4783)]