20199972

素因数分解:

$2^2\times 3^1\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{4177}}^1$

素因数の和:4228

約数の個数: 48

約数和(自身を含む): 52408832

約数和(自身を除く): 32208860

約数列:

[1, 2, 3, 4, 6, 12, 13, 26, 31, 39, 52, 62, 78, 93, 124, 156, 186, 372, 403, 806, 1209, 1612, 2418, 4177, 4836, 8354, 12531, 16708, 25062, 50124, 54301, 108602, 129487, 162903, 217204, 258974, 325806, 388461, 517948, 651612, 776922, 1553844, 1683331, 3366662, 5049993, 6733324, 10099986, 20199972]

約数ペア:

[(1, 20199972), (2, 10099986), (3, 6733324), (4, 5049993), (6, 3366662), (12, 1683331), (13, 1553844), (26, 776922), (31, 651612), (39, 517948), (52, 388461), (62, 325806), (78, 258974), (93, 217204), (124, 162903), (156, 129487), (186, 108602), (372, 54301), (403, 50124), (806, 25062), (1209, 16708), (1612, 12531), (2418, 8354), (4177, 4836)]