20805364325

素因数分解:

$5^2\times {\mathrm{19}}^1\times {\mathrm{131}}^1\times {\mathrm{257}}^1\times {\mathrm{1301}}^1$

素因数の和:1718

約数の個数: 48

約数和(自身を含む): 27491365440

約数和(自身を除く): 6686001115

約数列:

[1, 5, 19, 25, 95, 131, 257, 475, 655, 1285, 1301, 2489, 3275, 4883, 6425, 6505, 12445, 24415, 24719, 32525, 33667, 62225, 122075, 123595, 168335, 170431, 334357, 617975, 639673, 841675, 852155, 1671785, 3198365, 3238189, 4260775, 6352783, 8358925, 15991825, 16190945, 31763915, 43800767, 80954725, 158819575, 219003835, 832214573, 1095019175, 4161072865, 20805364325]

約数ペア:

[(1, 20805364325), (5, 4161072865), (19, 1095019175), (25, 832214573), (95, 219003835), (131, 158819575), (257, 80954725), (475, 43800767), (655, 31763915), (1285, 16190945), (1301, 15991825), (2489, 8358925), (3275, 6352783), (4883, 4260775), (6425, 3238189), (6505, 3198365), (12445, 1671785), (24415, 852155), (24719, 841675), (32525, 639673), (33667, 617975), (62225, 334357), (122075, 170431), (123595, 168335)]