78089900

素因数分解:

$2^2\times 5^2\times 7^1\times {\mathrm{281}}^1\times {\mathrm{397}}^1$

素因数の和:699

約数の個数: 72

約数和(自身を含む): 194841696

約数和(自身を除く): 116751796

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 25, 28, 35, 50, 70, 100, 140, 175, 281, 350, 397, 562, 700, 794, 1124, 1405, 1588, 1967, 1985, 2779, 2810, 3934, 3970, 5558, 5620, 7025, 7868, 7940, 9835, 9925, 11116, 13895, 14050, 19670, 19850, 27790, 28100, 39340, 39700, 49175, 55580, 69475, 98350, 111557, 138950, 196700, 223114, 277900, 446228, 557785, 780899, 1115570, 1561798, 2231140, 2788925, 3123596, 3904495, 5577850, 7808990, 11155700, 15617980, 19522475, 39044950, 78089900]

約数ペア:

[(1, 78089900), (2, 39044950), (4, 19522475), (5, 15617980), (7, 11155700), (10, 7808990), (14, 5577850), (20, 3904495), (25, 3123596), (28, 2788925), (35, 2231140), (50, 1561798), (70, 1115570), (100, 780899), (140, 557785), (175, 446228), (281, 277900), (350, 223114), (397, 196700), (562, 138950), (700, 111557), (794, 98350), (1124, 69475), (1405, 55580), (1588, 49175), (1967, 39700), (1985, 39340), (2779, 28100), (2810, 27790), (3934, 19850), (3970, 19670), (5558, 14050), (5620, 13895), (7025, 11116), (7868, 9925), (7940, 9835)]