164891728

素因数分解:

$2^4\times {\mathrm{19}}^1\times {\mathrm{31}}^1\times {\mathrm{17497}}^1$

素因数の和:17555

約数の個数: 40

約数和(自身を含む): 347160320

約数和(自身を除く): 182268592

約数列:

[1, 2, 4, 8, 16, 19, 31, 38, 62, 76, 124, 152, 248, 304, 496, 589, 1178, 2356, 4712, 9424, 17497, 34994, 69988, 139976, 279952, 332443, 542407, 664886, 1084814, 1329772, 2169628, 2659544, 4339256, 5319088, 8678512, 10305733, 20611466, 41222932, 82445864, 164891728]

約数ペア:

[(1, 164891728), (2, 82445864), (4, 41222932), (8, 20611466), (16, 10305733), (19, 8678512), (31, 5319088), (38, 4339256), (62, 2659544), (76, 2169628), (124, 1329772), (152, 1084814), (248, 664886), (304, 542407), (496, 332443), (589, 279952), (1178, 139976), (2356, 69988), (4712, 34994), (9424, 17497)]