20118371584

素因数分解:

$2^8\times {\mathrm{23}}^1\times {\mathrm{337}}^1\times {\mathrm{10139}}^1$

素因数の和:10515

約数の個数: 72

約数和(自身を含む): 42032652480

約数和(自身を除く): 21914280896

約数列:

[1, 2, 4, 8, 16, 23, 32, 46, 64, 92, 128, 184, 256, 337, 368, 674, 736, 1348, 1472, 2696, 2944, 5392, 5888, 7751, 10139, 10784, 15502, 20278, 21568, 31004, 40556, 43136, 62008, 81112, 86272, 124016, 162224, 233197, 248032, 324448, 466394, 496064, 648896, 932788, 992128, 1297792, 1865576, 1984256, 2595584, 3416843, 3731152, 6833686, 7462304, 13667372, 14924608, 27334744, 29849216, 54669488, 59698432, 78587389, 109338976, 157174778, 218677952, 314349556, 437355904, 628699112, 874711808, 1257398224, 2514796448, 5029592896, 10059185792, 20118371584]

約数ペア:

[(1, 20118371584), (2, 10059185792), (4, 5029592896), (8, 2514796448), (16, 1257398224), (23, 874711808), (32, 628699112), (46, 437355904), (64, 314349556), (92, 218677952), (128, 157174778), (184, 109338976), (256, 78587389), (337, 59698432), (368, 54669488), (674, 29849216), (736, 27334744), (1348, 14924608), (1472, 13667372), (2696, 7462304), (2944, 6833686), (5392, 3731152), (5888, 3416843), (7751, 2595584), (10139, 1984256), (10784, 1865576), (15502, 1297792), (20278, 992128), (21568, 932788), (31004, 648896), (40556, 496064), (43136, 466394), (62008, 324448), (81112, 248032), (86272, 233197), (124016, 162224)]