261838515

素因数分解:

$3^1\times 5^1\times {\mathrm{113}}^1\times {\mathrm{179}}^1\times {\mathrm{863}}^1$

素因数の和:1163

約数の個数: 32

約数和(自身を含む): 425502720

約数和(自身を除く): 163664205

約数列:

[1, 3, 5, 15, 113, 179, 339, 537, 565, 863, 895, 1695, 2589, 2685, 4315, 12945, 20227, 60681, 97519, 101135, 154477, 292557, 303405, 463431, 487595, 772385, 1462785, 2317155, 17455901, 52367703, 87279505, 261838515]

約数ペア:

[(1, 261838515), (3, 87279505), (5, 52367703), (15, 17455901), (113, 2317155), (179, 1462785), (339, 772385), (537, 487595), (565, 463431), (863, 303405), (895, 292557), (1695, 154477), (2589, 101135), (2685, 97519), (4315, 60681), (12945, 20227)]