138975728

素因数分解:

$2^4\times {\mathrm{19}}^1\times {\mathrm{31}}^1\times {\mathrm{14747}}^1$

素因数の和:14805

約数の個数: 40

約数和(自身を含む): 292600320

約数和(自身を除く): 153624592

約数列:

[1, 2, 4, 8, 16, 19, 31, 38, 62, 76, 124, 152, 248, 304, 496, 589, 1178, 2356, 4712, 9424, 14747, 29494, 58988, 117976, 235952, 280193, 457157, 560386, 914314, 1120772, 1828628, 2241544, 3657256, 4483088, 7314512, 8685983, 17371966, 34743932, 69487864, 138975728]

約数ペア:

[(1, 138975728), (2, 69487864), (4, 34743932), (8, 17371966), (16, 8685983), (19, 7314512), (31, 4483088), (38, 3657256), (62, 2241544), (76, 1828628), (124, 1120772), (152, 914314), (248, 560386), (304, 457157), (496, 280193), (589, 235952), (1178, 117976), (2356, 58988), (4712, 29494), (9424, 14747)]