2917720

素因数分解:

$2^3\times 5^1\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{181}}^1$

素因数の和:236

約数の個数: 64

約数和(自身を含む): 7338240

約数和(自身を除く): 4420520

約数列:

[1, 2, 4, 5, 8, 10, 13, 20, 26, 31, 40, 52, 62, 65, 104, 124, 130, 155, 181, 248, 260, 310, 362, 403, 520, 620, 724, 806, 905, 1240, 1448, 1612, 1810, 2015, 2353, 3224, 3620, 4030, 4706, 5611, 7240, 8060, 9412, 11222, 11765, 16120, 18824, 22444, 23530, 28055, 44888, 47060, 56110, 72943, 94120, 112220, 145886, 224440, 291772, 364715, 583544, 729430, 1458860, 2917720]

約数ペア:

[(1, 2917720), (2, 1458860), (4, 729430), (5, 583544), (8, 364715), (10, 291772), (13, 224440), (20, 145886), (26, 112220), (31, 94120), (40, 72943), (52, 56110), (62, 47060), (65, 44888), (104, 28055), (124, 23530), (130, 22444), (155, 18824), (181, 16120), (248, 11765), (260, 11222), (310, 9412), (362, 8060), (403, 7240), (520, 5611), (620, 4706), (724, 4030), (806, 3620), (905, 3224), (1240, 2353), (1448, 2015), (1612, 1810)]