261666784

素因数分解:

$2^5\times {\mathrm{19}}^1\times {\mathrm{31}}^1\times {\mathrm{13883}}^1$

素因数の和:13943

約数の個数: 48

約数和(自身を含む): 559802880

約数和(自身を除く): 298136096

約数列:

[1, 2, 4, 8, 16, 19, 31, 32, 38, 62, 76, 124, 152, 248, 304, 496, 589, 608, 992, 1178, 2356, 4712, 9424, 13883, 18848, 27766, 55532, 111064, 222128, 263777, 430373, 444256, 527554, 860746, 1055108, 1721492, 2110216, 3442984, 4220432, 6885968, 8177087, 8440864, 13771936, 16354174, 32708348, 65416696, 130833392, 261666784]

約数ペア:

[(1, 261666784), (2, 130833392), (4, 65416696), (8, 32708348), (16, 16354174), (19, 13771936), (31, 8440864), (32, 8177087), (38, 6885968), (62, 4220432), (76, 3442984), (124, 2110216), (152, 1721492), (248, 1055108), (304, 860746), (496, 527554), (589, 444256), (608, 430373), (992, 263777), (1178, 222128), (2356, 111064), (4712, 55532), (9424, 27766), (13883, 18848)]