2475980

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{89}}^1\times {\mathrm{107}}^1$

素因数の和:218

約数の個数: 48

約数和(自身を含む): 5715360

約数和(自身を除く): 3239380

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 52, 65, 89, 107, 130, 178, 214, 260, 356, 428, 445, 535, 890, 1070, 1157, 1391, 1780, 2140, 2314, 2782, 4628, 5564, 5785, 6955, 9523, 11570, 13910, 19046, 23140, 27820, 38092, 47615, 95230, 123799, 190460, 247598, 495196, 618995, 1237990, 2475980]

約数ペア:

[(1, 2475980), (2, 1237990), (4, 618995), (5, 495196), (10, 247598), (13, 190460), (20, 123799), (26, 95230), (52, 47615), (65, 38092), (89, 27820), (107, 23140), (130, 19046), (178, 13910), (214, 11570), (260, 9523), (356, 6955), (428, 5785), (445, 5564), (535, 4628), (890, 2782), (1070, 2314), (1157, 2140), (1391, 1780)]