40807760

素因数分解:

$2^4\times 5^1\times 7^1\times {\mathrm{72871}}^1$

素因数の和:72891

約数の個数: 40

約数和(自身を含む): 108433536

約数和(自身を除く): 67625776

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 35, 40, 56, 70, 80, 112, 140, 280, 560, 72871, 145742, 291484, 364355, 510097, 582968, 728710, 1020194, 1165936, 1457420, 2040388, 2550485, 2914840, 4080776, 5100970, 5829680, 8161552, 10201940, 20403880, 40807760]

約数ペア:

[(1, 40807760), (2, 20403880), (4, 10201940), (5, 8161552), (7, 5829680), (8, 5100970), (10, 4080776), (14, 2914840), (16, 2550485), (20, 2040388), (28, 1457420), (35, 1165936), (40, 1020194), (56, 728710), (70, 582968), (80, 510097), (112, 364355), (140, 291484), (280, 145742), (560, 72871)]