20675488

素因数分解:

$2^5\times {\mathrm{47}}^1\times {\mathrm{59}}^1\times {\mathrm{233}}^1$

素因数の和:349

約数の個数: 48

約数和(自身を含む): 42456960

約数和(自身を除く): 21781472

約数列:

[1, 2, 4, 8, 16, 32, 47, 59, 94, 118, 188, 233, 236, 376, 466, 472, 752, 932, 944, 1504, 1864, 1888, 2773, 3728, 5546, 7456, 10951, 11092, 13747, 21902, 22184, 27494, 43804, 44368, 54988, 87608, 88736, 109976, 175216, 219952, 350432, 439904, 646109, 1292218, 2584436, 5168872, 10337744, 20675488]

約数ペア:

[(1, 20675488), (2, 10337744), (4, 5168872), (8, 2584436), (16, 1292218), (32, 646109), (47, 439904), (59, 350432), (94, 219952), (118, 175216), (188, 109976), (233, 88736), (236, 87608), (376, 54988), (466, 44368), (472, 43804), (752, 27494), (932, 22184), (944, 21902), (1504, 13747), (1864, 11092), (1888, 10951), (2773, 7456), (3728, 5546)]