1285192916

素因数分解:

$2^2\times 7^1\times {\mathrm{31}}^1\times {\mathrm{83}}^1\times {\mathrm{17839}}^1$

素因数の和:17964

約数の個数: 48

約数和(自身を含む): 2685419520

約数和(自身を除く): 1400226604

約数列:

[1, 2, 4, 7, 14, 28, 31, 62, 83, 124, 166, 217, 332, 434, 581, 868, 1162, 2324, 2573, 5146, 10292, 17839, 18011, 35678, 36022, 71356, 72044, 124873, 249746, 499492, 553009, 1106018, 1480637, 2212036, 2961274, 3871063, 5922548, 7742126, 10364459, 15484252, 20728918, 41457836, 45899747, 91799494, 183598988, 321298229, 642596458, 1285192916]

約数ペア:

[(1, 1285192916), (2, 642596458), (4, 321298229), (7, 183598988), (14, 91799494), (28, 45899747), (31, 41457836), (62, 20728918), (83, 15484252), (124, 10364459), (166, 7742126), (217, 5922548), (332, 3871063), (434, 2961274), (581, 2212036), (868, 1480637), (1162, 1106018), (2324, 553009), (2573, 499492), (5146, 249746), (10292, 124873), (17839, 72044), (18011, 71356), (35678, 36022)]