28751450

素因数分解:

$2^1\times 5^2\times 7^1\times {\mathrm{13}}^1\times {\mathrm{71}}^1\times {\mathrm{89}}^1$

素因数の和:192

約数の個数: 96

約数和(自身を含む): 67495680

約数和(自身を除く): 38744230

約数列:

[1, 2, 5, 7, 10, 13, 14, 25, 26, 35, 50, 65, 70, 71, 89, 91, 130, 142, 175, 178, 182, 325, 350, 355, 445, 455, 497, 623, 650, 710, 890, 910, 923, 994, 1157, 1246, 1775, 1846, 2225, 2275, 2314, 2485, 3115, 3550, 4450, 4550, 4615, 4970, 5785, 6230, 6319, 6461, 8099, 9230, 11570, 12425, 12638, 12922, 15575, 16198, 23075, 24850, 28925, 31150, 31595, 32305, 40495, 44233, 46150, 57850, 63190, 64610, 80990, 82147, 88466, 157975, 161525, 164294, 202475, 221165, 315950, 323050, 404950, 410735, 442330, 575029, 821470, 1105825, 1150058, 2053675, 2211650, 2875145, 4107350, 5750290, 14375725, 28751450]

約数ペア:

[(1, 28751450), (2, 14375725), (5, 5750290), (7, 4107350), (10, 2875145), (13, 2211650), (14, 2053675), (25, 1150058), (26, 1105825), (35, 821470), (50, 575029), (65, 442330), (70, 410735), (71, 404950), (89, 323050), (91, 315950), (130, 221165), (142, 202475), (175, 164294), (178, 161525), (182, 157975), (325, 88466), (350, 82147), (355, 80990), (445, 64610), (455, 63190), (497, 57850), (623, 46150), (650, 44233), (710, 40495), (890, 32305), (910, 31595), (923, 31150), (994, 28925), (1157, 24850), (1246, 23075), (1775, 16198), (1846, 15575), (2225, 12922), (2275, 12638), (2314, 12425), (2485, 11570), (3115, 9230), (3550, 8099), (4450, 6461), (4550, 6319), (4615, 6230), (4970, 5785)]