71884225

素因数分解:

$5^2\times 7^3\times {\mathrm{83}}^1\times {\mathrm{101}}^1$

素因数の和:215

約数の個数: 48

約数和(自身を含む): 106243200

約数和(自身を除く): 34358975

約数列:

[1, 5, 7, 25, 35, 49, 83, 101, 175, 245, 343, 415, 505, 581, 707, 1225, 1715, 2075, 2525, 2905, 3535, 4067, 4949, 8383, 8575, 14525, 17675, 20335, 24745, 28469, 34643, 41915, 58681, 101675, 123725, 142345, 173215, 209575, 293405, 410767, 711725, 866075, 1467025, 2053835, 2875369, 10269175, 14376845, 71884225]

約数ペア:

[(1, 71884225), (5, 14376845), (7, 10269175), (25, 2875369), (35, 2053835), (49, 1467025), (83, 866075), (101, 711725), (175, 410767), (245, 293405), (343, 209575), (415, 173215), (505, 142345), (581, 123725), (707, 101675), (1225, 58681), (1715, 41915), (2075, 34643), (2525, 28469), (2905, 24745), (3535, 20335), (4067, 17675), (4949, 14525), (8383, 8575)]