686209984

素因数分解:

$2^6\times {\mathrm{61}}^1\times {\mathrm{137}}^1\times {\mathrm{1283}}^1$

素因数の和:1493

約数の個数: 56

約数和(自身を含む): 1395209808

約数和(自身を除く): 708999824

約数列:

[1, 2, 4, 8, 16, 32, 61, 64, 122, 137, 244, 274, 488, 548, 976, 1096, 1283, 1952, 2192, 2566, 3904, 4384, 5132, 8357, 8768, 10264, 16714, 20528, 33428, 41056, 66856, 78263, 82112, 133712, 156526, 175771, 267424, 313052, 351542, 534848, 626104, 703084, 1252208, 1406168, 2504416, 2812336, 5008832, 5624672, 10722031, 11249344, 21444062, 42888124, 85776248, 171552496, 343104992, 686209984]

約数ペア:

[(1, 686209984), (2, 343104992), (4, 171552496), (8, 85776248), (16, 42888124), (32, 21444062), (61, 11249344), (64, 10722031), (122, 5624672), (137, 5008832), (244, 2812336), (274, 2504416), (488, 1406168), (548, 1252208), (976, 703084), (1096, 626104), (1283, 534848), (1952, 351542), (2192, 313052), (2566, 267424), (3904, 175771), (4384, 156526), (5132, 133712), (8357, 82112), (8768, 78263), (10264, 66856), (16714, 41056), (20528, 33428)]