78427160

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{280097}}^1$

素因数の和:280115

約数の個数: 32

約数和(自身を含む): 201670560

約数和(自身を除く): 123243400

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 56, 70, 140, 280, 280097, 560194, 1120388, 1400485, 1960679, 2240776, 2800970, 3921358, 5601940, 7842716, 9803395, 11203880, 15685432, 19606790, 39213580, 78427160]

約数ペア:

[(1, 78427160), (2, 39213580), (4, 19606790), (5, 15685432), (7, 11203880), (8, 9803395), (10, 7842716), (14, 5601940), (20, 3921358), (28, 2800970), (35, 2240776), (40, 1960679), (56, 1400485), (70, 1120388), (140, 560194), (280, 280097)]