16905550

素因数分解:

$2^1\times 5^2\times {\mathrm{29}}^1\times {\mathrm{89}}^1\times {\mathrm{131}}^1$

素因数の和:261

約数の個数: 48

約数和(自身を含む): 33145200

約数和(自身を除く): 16239650

約数列:

[1, 2, 5, 10, 25, 29, 50, 58, 89, 131, 145, 178, 262, 290, 445, 655, 725, 890, 1310, 1450, 2225, 2581, 3275, 3799, 4450, 5162, 6550, 7598, 11659, 12905, 18995, 23318, 25810, 37990, 58295, 64525, 94975, 116590, 129050, 189950, 291475, 338111, 582950, 676222, 1690555, 3381110, 8452775, 16905550]

約数ペア:

[(1, 16905550), (2, 8452775), (5, 3381110), (10, 1690555), (25, 676222), (29, 582950), (50, 338111), (58, 291475), (89, 189950), (131, 129050), (145, 116590), (178, 94975), (262, 64525), (290, 58295), (445, 37990), (655, 25810), (725, 23318), (890, 18995), (1310, 12905), (1450, 11659), (2225, 7598), (2581, 6550), (3275, 5162), (3799, 4450)]