81308164

素因数分解:

$2^2\times 7^1\times {\mathrm{31}}^1\times {\mathrm{283}}^1\times {\mathrm{331}}^1$

素因数の和:656

約数の個数: 48

約数和(自身を含む): 168964096

約数和(自身を除く): 87655932

約数列:

[1, 2, 4, 7, 14, 28, 31, 62, 124, 217, 283, 331, 434, 566, 662, 868, 1132, 1324, 1981, 2317, 3962, 4634, 7924, 8773, 9268, 10261, 17546, 20522, 35092, 41044, 61411, 71827, 93673, 122822, 143654, 187346, 245644, 287308, 374692, 655711, 1311422, 2622844, 2903863, 5807726, 11615452, 20327041, 40654082, 81308164]

約数ペア:

[(1, 81308164), (2, 40654082), (4, 20327041), (7, 11615452), (14, 5807726), (28, 2903863), (31, 2622844), (62, 1311422), (124, 655711), (217, 374692), (283, 287308), (331, 245644), (434, 187346), (566, 143654), (662, 122822), (868, 93673), (1132, 71827), (1324, 61411), (1981, 41044), (2317, 35092), (3962, 20522), (4634, 17546), (7924, 10261), (8773, 9268)]