215514740

素因数分解:

$2^2\times 5^1\times 7^2\times {\mathrm{47}}^1\times {\mathrm{4679}}^1$

素因数の和:4749

約数の個数: 72

約数和(自身を含む): 537788160

約数和(自身を除く): 322273420

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 47, 49, 70, 94, 98, 140, 188, 196, 235, 245, 329, 470, 490, 658, 940, 980, 1316, 1645, 2303, 3290, 4606, 4679, 6580, 9212, 9358, 11515, 18716, 23030, 23395, 32753, 46060, 46790, 65506, 93580, 131012, 163765, 219913, 229271, 327530, 439826, 458542, 655060, 879652, 917084, 1099565, 1146355, 1539391, 2199130, 2292710, 3078782, 4398260, 4585420, 6157564, 7696955, 10775737, 15393910, 21551474, 30787820, 43102948, 53878685, 107757370, 215514740]

約数ペア:

[(1, 215514740), (2, 107757370), (4, 53878685), (5, 43102948), (7, 30787820), (10, 21551474), (14, 15393910), (20, 10775737), (28, 7696955), (35, 6157564), (47, 4585420), (49, 4398260), (70, 3078782), (94, 2292710), (98, 2199130), (140, 1539391), (188, 1146355), (196, 1099565), (235, 917084), (245, 879652), (329, 655060), (470, 458542), (490, 439826), (658, 327530), (940, 229271), (980, 219913), (1316, 163765), (1645, 131012), (2303, 93580), (3290, 65506), (4606, 46790), (4679, 46060), (6580, 32753), (9212, 23395), (9358, 23030), (11515, 18716)]