78781280

素因数分解:

$2^5\times 5^1\times {\mathrm{67}}^1\times {\mathrm{7349}}^1$

素因数の和:7431

約数の個数: 48

約数和(自身を含む): 188924400

約数和(自身を除く): 110143120

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 67, 80, 134, 160, 268, 335, 536, 670, 1072, 1340, 2144, 2680, 5360, 7349, 10720, 14698, 29396, 36745, 58792, 73490, 117584, 146980, 235168, 293960, 492383, 587920, 984766, 1175840, 1969532, 2461915, 3939064, 4923830, 7878128, 9847660, 15756256, 19695320, 39390640, 78781280]

約数ペア:

[(1, 78781280), (2, 39390640), (4, 19695320), (5, 15756256), (8, 9847660), (10, 7878128), (16, 4923830), (20, 3939064), (32, 2461915), (40, 1969532), (67, 1175840), (80, 984766), (134, 587920), (160, 492383), (268, 293960), (335, 235168), (536, 146980), (670, 117584), (1072, 73490), (1340, 58792), (2144, 36745), (2680, 29396), (5360, 14698), (7349, 10720)]