20587026100

素因数分解:

$2^2\times 5^2\times {\mathrm{89}}^1\times {\mathrm{317}}^1\times {\mathrm{7297}}^1$

素因数の和:7717

約数の個数: 72

約数和(自身を含む): 45324520920

約数和(自身を除く): 24737494820

約数列:

[1, 2, 4, 5, 10, 20, 25, 50, 89, 100, 178, 317, 356, 445, 634, 890, 1268, 1585, 1780, 2225, 3170, 4450, 6340, 7297, 7925, 8900, 14594, 15850, 28213, 29188, 31700, 36485, 56426, 72970, 112852, 141065, 145940, 182425, 282130, 364850, 564260, 649433, 705325, 729700, 1298866, 1410650, 2313149, 2597732, 2821300, 3247165, 4626298, 6494330, 9252596, 11565745, 12988660, 16235825, 23131490, 32471650, 46262980, 57828725, 64943300, 115657450, 205870261, 231314900, 411740522, 823481044, 1029351305, 2058702610, 4117405220, 5146756525, 10293513050, 20587026100]

約数ペア:

[(1, 20587026100), (2, 10293513050), (4, 5146756525), (5, 4117405220), (10, 2058702610), (20, 1029351305), (25, 823481044), (50, 411740522), (89, 231314900), (100, 205870261), (178, 115657450), (317, 64943300), (356, 57828725), (445, 46262980), (634, 32471650), (890, 23131490), (1268, 16235825), (1585, 12988660), (1780, 11565745), (2225, 9252596), (3170, 6494330), (4450, 4626298), (6340, 3247165), (7297, 2821300), (7925, 2597732), (8900, 2313149), (14594, 1410650), (15850, 1298866), (28213, 729700), (29188, 705325), (31700, 649433), (36485, 564260), (56426, 364850), (72970, 282130), (112852, 182425), (141065, 145940)]