19637488

素因数分解:

$2^4\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{4969}}^1$

素因数の和:5009

約数の個数: 40

約数和(自身を含む): 43139600

約数和(自身を除く): 23502112

約数列:

[1, 2, 4, 8, 13, 16, 19, 26, 38, 52, 76, 104, 152, 208, 247, 304, 494, 988, 1976, 3952, 4969, 9938, 19876, 39752, 64597, 79504, 94411, 129194, 188822, 258388, 377644, 516776, 755288, 1033552, 1227343, 1510576, 2454686, 4909372, 9818744, 19637488]

約数ペア:

[(1, 19637488), (2, 9818744), (4, 4909372), (8, 2454686), (13, 1510576), (16, 1227343), (19, 1033552), (26, 755288), (38, 516776), (52, 377644), (76, 258388), (104, 188822), (152, 129194), (208, 94411), (247, 79504), (304, 64597), (494, 39752), (988, 19876), (1976, 9938), (3952, 4969)]