13501280

素因数分解:

$2^5\times 5^1\times {\mathrm{13}}^1\times {\mathrm{6491}}^1$

素因数の和:6519

約数の個数: 48

約数和(自身を含む): 34355664

約数和(自身を除く): 20854384

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 20, 26, 32, 40, 52, 65, 80, 104, 130, 160, 208, 260, 416, 520, 1040, 2080, 6491, 12982, 25964, 32455, 51928, 64910, 84383, 103856, 129820, 168766, 207712, 259640, 337532, 421915, 519280, 675064, 843830, 1038560, 1350128, 1687660, 2700256, 3375320, 6750640, 13501280]

約数ペア:

[(1, 13501280), (2, 6750640), (4, 3375320), (5, 2700256), (8, 1687660), (10, 1350128), (13, 1038560), (16, 843830), (20, 675064), (26, 519280), (32, 421915), (40, 337532), (52, 259640), (65, 207712), (80, 168766), (104, 129820), (130, 103856), (160, 84383), (208, 64910), (260, 51928), (416, 32455), (520, 25964), (1040, 12982), (2080, 6491)]