19890768

素因数分解:

$2^4\times 3^1\times {\mathrm{23}}^1\times {\mathrm{43}}^1\times {\mathrm{419}}^1$

素因数の和:496

約数の個数: 80

約数和(自身を含む): 54996480

約数和(自身を除く): 35105712

約数列:

[1, 2, 3, 4, 6, 8, 12, 16, 23, 24, 43, 46, 48, 69, 86, 92, 129, 138, 172, 184, 258, 276, 344, 368, 419, 516, 552, 688, 838, 989, 1032, 1104, 1257, 1676, 1978, 2064, 2514, 2967, 3352, 3956, 5028, 5934, 6704, 7912, 9637, 10056, 11868, 15824, 18017, 19274, 20112, 23736, 28911, 36034, 38548, 47472, 54051, 57822, 72068, 77096, 108102, 115644, 144136, 154192, 216204, 231288, 288272, 414391, 432408, 462576, 828782, 864816, 1243173, 1657564, 2486346, 3315128, 4972692, 6630256, 9945384, 19890768]

約数ペア:

[(1, 19890768), (2, 9945384), (3, 6630256), (4, 4972692), (6, 3315128), (8, 2486346), (12, 1657564), (16, 1243173), (23, 864816), (24, 828782), (43, 462576), (46, 432408), (48, 414391), (69, 288272), (86, 231288), (92, 216204), (129, 154192), (138, 144136), (172, 115644), (184, 108102), (258, 77096), (276, 72068), (344, 57822), (368, 54051), (419, 47472), (516, 38548), (552, 36034), (688, 28911), (838, 23736), (989, 20112), (1032, 19274), (1104, 18017), (1257, 15824), (1676, 11868), (1978, 10056), (2064, 9637), (2514, 7912), (2967, 6704), (3352, 5934), (3956, 5028)]