16788980

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{2083}}^1$

素因数の和:2136

約数の個数: 48

約数和(自身を含む): 39212544

約数和(自身を除く): 22423564

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 31, 52, 62, 65, 124, 130, 155, 260, 310, 403, 620, 806, 1612, 2015, 2083, 4030, 4166, 8060, 8332, 10415, 20830, 27079, 41660, 54158, 64573, 108316, 129146, 135395, 258292, 270790, 322865, 541580, 645730, 839449, 1291460, 1678898, 3357796, 4197245, 8394490, 16788980]

約数ペア:

[(1, 16788980), (2, 8394490), (4, 4197245), (5, 3357796), (10, 1678898), (13, 1291460), (20, 839449), (26, 645730), (31, 541580), (52, 322865), (62, 270790), (65, 258292), (124, 135395), (130, 129146), (155, 108316), (260, 64573), (310, 54158), (403, 41660), (620, 27079), (806, 20830), (1612, 10415), (2015, 8332), (2083, 8060), (4030, 4166)]