80821725

素因数分解:

$3^1\times 5^2\times {\mathrm{19}}^1\times {\mathrm{43}}^1\times {\mathrm{1319}}^1$

素因数の和:1394

約数の個数: 48

約数和(自身を含む): 144038400

約数和(自身を除く): 63216675

約数列:

[1, 3, 5, 15, 19, 25, 43, 57, 75, 95, 129, 215, 285, 475, 645, 817, 1075, 1319, 1425, 2451, 3225, 3957, 4085, 6595, 12255, 19785, 20425, 25061, 32975, 56717, 61275, 75183, 98925, 125305, 170151, 283585, 375915, 626525, 850755, 1077623, 1417925, 1879575, 3232869, 4253775, 5388115, 16164345, 26940575, 80821725]

約数ペア:

[(1, 80821725), (3, 26940575), (5, 16164345), (15, 5388115), (19, 4253775), (25, 3232869), (43, 1879575), (57, 1417925), (75, 1077623), (95, 850755), (129, 626525), (215, 375915), (285, 283585), (475, 170151), (645, 125305), (817, 98925), (1075, 75183), (1319, 61275), (1425, 56717), (2451, 32975), (3225, 25061), (3957, 20425), (4085, 19785), (6595, 12255)]