20928224

素因数分解:

$2^5\times {\mathrm{17}}^2\times {\mathrm{31}}^1\times {\mathrm{73}}^1$

素因数の和:148

約数の個数: 72

約数和(自身を含む): 45799488

約数和(自身を除く): 24871264

約数列:

[1, 2, 4, 8, 16, 17, 31, 32, 34, 62, 68, 73, 124, 136, 146, 248, 272, 289, 292, 496, 527, 544, 578, 584, 992, 1054, 1156, 1168, 1241, 2108, 2263, 2312, 2336, 2482, 4216, 4526, 4624, 4964, 8432, 8959, 9052, 9248, 9928, 16864, 17918, 18104, 19856, 21097, 35836, 36208, 38471, 39712, 42194, 71672, 72416, 76942, 84388, 143344, 153884, 168776, 286688, 307768, 337552, 615536, 654007, 675104, 1231072, 1308014, 2616028, 5232056, 10464112, 20928224]

約数ペア:

[(1, 20928224), (2, 10464112), (4, 5232056), (8, 2616028), (16, 1308014), (17, 1231072), (31, 675104), (32, 654007), (34, 615536), (62, 337552), (68, 307768), (73, 286688), (124, 168776), (136, 153884), (146, 143344), (248, 84388), (272, 76942), (289, 72416), (292, 71672), (496, 42194), (527, 39712), (544, 38471), (578, 36208), (584, 35836), (992, 21097), (1054, 19856), (1156, 18104), (1168, 17918), (1241, 16864), (2108, 9928), (2263, 9248), (2312, 9052), (2336, 8959), (2482, 8432), (4216, 4964), (4526, 4624)]