72639580

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^2\times {\mathrm{21491}}^1$

素因数の和:21526

約数の個数: 36

約数和(自身を含む): 165187512

約数和(自身を除く): 92547932

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 52, 65, 130, 169, 260, 338, 676, 845, 1690, 3380, 21491, 42982, 85964, 107455, 214910, 279383, 429820, 558766, 1117532, 1396915, 2793830, 3631979, 5587660, 7263958, 14527916, 18159895, 36319790, 72639580]

約数ペア:

[(1, 72639580), (2, 36319790), (4, 18159895), (5, 14527916), (10, 7263958), (13, 5587660), (20, 3631979), (26, 2793830), (52, 1396915), (65, 1117532), (130, 558766), (169, 429820), (260, 279383), (338, 214910), (676, 107455), (845, 85964), (1690, 42982), (3380, 21491)]