268974290

素因数分解:

$2^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{31}}^2\times {\mathrm{2153}}^1$

素因数の和:2235

約数の個数: 48

約数和(自身を含む): 539008344

約数和(自身を除く): 270034054

約数列:

[1, 2, 5, 10, 13, 26, 31, 62, 65, 130, 155, 310, 403, 806, 961, 1922, 2015, 2153, 4030, 4306, 4805, 9610, 10765, 12493, 21530, 24986, 27989, 55978, 62465, 66743, 124930, 133486, 139945, 279890, 333715, 667430, 867659, 1735318, 2069033, 4138066, 4338295, 8676590, 10345165, 20690330, 26897429, 53794858, 134487145, 268974290]

約数ペア:

[(1, 268974290), (2, 134487145), (5, 53794858), (10, 26897429), (13, 20690330), (26, 10345165), (31, 8676590), (62, 4338295), (65, 4138066), (130, 2069033), (155, 1735318), (310, 867659), (403, 667430), (806, 333715), (961, 279890), (1922, 139945), (2015, 133486), (2153, 124930), (4030, 66743), (4306, 62465), (4805, 55978), (9610, 27989), (10765, 24986), (12493, 21530)]