20844550

素因数分解:

$2^1\times 5^2\times {\mathrm{17}}^1\times {\mathrm{137}}^1\times {\mathrm{179}}^1$

素因数の和:345

約数の個数: 48

約数和(自身を含む): 41582160

約数和(自身を除く): 20737610

約数列:

[1, 2, 5, 10, 17, 25, 34, 50, 85, 137, 170, 179, 274, 358, 425, 685, 850, 895, 1370, 1790, 2329, 3043, 3425, 4475, 4658, 6086, 6850, 8950, 11645, 15215, 23290, 24523, 30430, 49046, 58225, 76075, 116450, 122615, 152150, 245230, 416891, 613075, 833782, 1226150, 2084455, 4168910, 10422275, 20844550]

約数ペア:

[(1, 20844550), (2, 10422275), (5, 4168910), (10, 2084455), (17, 1226150), (25, 833782), (34, 613075), (50, 416891), (85, 245230), (137, 152150), (170, 122615), (179, 116450), (274, 76075), (358, 58225), (425, 49046), (685, 30430), (850, 24523), (895, 23290), (1370, 15215), (1790, 11645), (2329, 8950), (3043, 6850), (3425, 6086), (4475, 4658)]