81428325

素因数分解:

$3^1\times 5^2\times {\mathrm{11}}^1\times {\mathrm{89}}^1\times {\mathrm{1109}}^1$

素因数の和:1222

約数の個数: 48

約数和(自身を含む): 148651200

約数和(自身を除く): 67222875

約数列:

[1, 3, 5, 11, 15, 25, 33, 55, 75, 89, 165, 267, 275, 445, 825, 979, 1109, 1335, 2225, 2937, 3327, 4895, 5545, 6675, 12199, 14685, 16635, 24475, 27725, 36597, 60995, 73425, 83175, 98701, 182985, 296103, 304975, 493505, 914925, 1085711, 1480515, 2467525, 3257133, 5428555, 7402575, 16285665, 27142775, 81428325]

約数ペア:

[(1, 81428325), (3, 27142775), (5, 16285665), (11, 7402575), (15, 5428555), (25, 3257133), (33, 2467525), (55, 1480515), (75, 1085711), (89, 914925), (165, 493505), (267, 304975), (275, 296103), (445, 182985), (825, 98701), (979, 83175), (1109, 73425), (1335, 60995), (2225, 36597), (2937, 27725), (3327, 24475), (4895, 16635), (5545, 14685), (6675, 12199)]