20734336

素因数分解:

$2^7\times 7^1\times {\mathrm{73}}^1\times {\mathrm{317}}^1$

素因数の和:411

約数の個数: 64

約数和(自身を含む): 48005280

約数和(自身を除く): 27270944

約数列:

[1, 2, 4, 7, 8, 14, 16, 28, 32, 56, 64, 73, 112, 128, 146, 224, 292, 317, 448, 511, 584, 634, 896, 1022, 1168, 1268, 2044, 2219, 2336, 2536, 4088, 4438, 4672, 5072, 8176, 8876, 9344, 10144, 16352, 17752, 20288, 23141, 32704, 35504, 40576, 46282, 65408, 71008, 92564, 142016, 161987, 185128, 284032, 323974, 370256, 647948, 740512, 1295896, 1481024, 2591792, 2962048, 5183584, 10367168, 20734336]

約数ペア:

[(1, 20734336), (2, 10367168), (4, 5183584), (7, 2962048), (8, 2591792), (14, 1481024), (16, 1295896), (28, 740512), (32, 647948), (56, 370256), (64, 323974), (73, 284032), (112, 185128), (128, 161987), (146, 142016), (224, 92564), (292, 71008), (317, 65408), (448, 46282), (511, 40576), (584, 35504), (634, 32704), (896, 23141), (1022, 20288), (1168, 17752), (1268, 16352), (2044, 10144), (2219, 9344), (2336, 8876), (2536, 8176), (4088, 5072), (4438, 4672)]