20117350

素因数分解:

$2^1\times 5^2\times {\mathrm{11}}^1\times {\mathrm{79}}^1\times {\mathrm{463}}^1$

素因数の和:565

約数の個数: 48

約数和(自身を含む): 41425920

約数和(自身を除く): 21308570

約数列:

[1, 2, 5, 10, 11, 22, 25, 50, 55, 79, 110, 158, 275, 395, 463, 550, 790, 869, 926, 1738, 1975, 2315, 3950, 4345, 4630, 5093, 8690, 10186, 11575, 21725, 23150, 25465, 36577, 43450, 50930, 73154, 127325, 182885, 254650, 365770, 402347, 804694, 914425, 1828850, 2011735, 4023470, 10058675, 20117350]

約数ペア:

[(1, 20117350), (2, 10058675), (5, 4023470), (10, 2011735), (11, 1828850), (22, 914425), (25, 804694), (50, 402347), (55, 365770), (79, 254650), (110, 182885), (158, 127325), (275, 73154), (395, 50930), (463, 43450), (550, 36577), (790, 25465), (869, 23150), (926, 21725), (1738, 11575), (1975, 10186), (2315, 8690), (3950, 5093), (4345, 4630)]