71530640

素因数分解:

$2^4\times 5^1\times {\mathrm{31}}^1\times {\mathrm{28843}}^1$

素因数の和:28887

約数の個数: 40

約数和(自身を含む): 171679488

約数和(自身を除く): 100148848

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 31, 40, 62, 80, 124, 155, 248, 310, 496, 620, 1240, 2480, 28843, 57686, 115372, 144215, 230744, 288430, 461488, 576860, 894133, 1153720, 1788266, 2307440, 3576532, 4470665, 7153064, 8941330, 14306128, 17882660, 35765320, 71530640]

約数ペア:

[(1, 71530640), (2, 35765320), (4, 17882660), (5, 14306128), (8, 8941330), (10, 7153064), (16, 4470665), (20, 3576532), (31, 2307440), (40, 1788266), (62, 1153720), (80, 894133), (124, 576860), (155, 461488), (248, 288430), (310, 230744), (496, 144215), (620, 115372), (1240, 57686), (2480, 28843)]