816557500

素因数分解:

$2^2\times 5^4\times {\mathrm{11}}^1\times {\mathrm{23}}^1\times {\mathrm{1291}}^1$

素因数の和:1349

約数の個数: 120

約数和(自身を含む): 2034248832

約数和(自身を除く): 1217691332

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 23, 25, 44, 46, 50, 55, 92, 100, 110, 115, 125, 220, 230, 250, 253, 275, 460, 500, 506, 550, 575, 625, 1012, 1100, 1150, 1250, 1265, 1291, 1375, 2300, 2500, 2530, 2582, 2750, 2875, 5060, 5164, 5500, 5750, 6325, 6455, 6875, 11500, 12650, 12910, 13750, 14201, 14375, 25300, 25820, 27500, 28402, 28750, 29693, 31625, 32275, 56804, 57500, 59386, 63250, 64550, 71005, 118772, 126500, 129100, 142010, 148465, 158125, 161375, 284020, 296930, 316250, 322750, 326623, 355025, 593860, 632500, 645500, 653246, 710050, 742325, 806875, 1306492, 1420100, 1484650, 1613750, 1633115, 1775125, 2969300, 3227500, 3266230, 3550250, 3711625, 6532460, 7100500, 7423250, 8165575, 8875625, 14846500, 16331150, 17751250, 18558125, 32662300, 35502500, 37116250, 40827875, 74232500, 81655750, 163311500, 204139375, 408278750, 816557500]

約数ペア:

[(1, 816557500), (2, 408278750), (4, 204139375), (5, 163311500), (10, 81655750), (11, 74232500), (20, 40827875), (22, 37116250), (23, 35502500), (25, 32662300), (44, 18558125), (46, 17751250), (50, 16331150), (55, 14846500), (92, 8875625), (100, 8165575), (110, 7423250), (115, 7100500), (125, 6532460), (220, 3711625), (230, 3550250), (250, 3266230), (253, 3227500), (275, 2969300), (460, 1775125), (500, 1633115), (506, 1613750), (550, 1484650), (575, 1420100), (625, 1306492), (1012, 806875), (1100, 742325), (1150, 710050), (1250, 653246), (1265, 645500), (1291, 632500), (1375, 593860), (2300, 355025), (2500, 326623), (2530, 322750), (2582, 316250), (2750, 296930), (2875, 284020), (5060, 161375), (5164, 158125), (5500, 148465), (5750, 142010), (6325, 129100), (6455, 126500), (6875, 118772), (11500, 71005), (12650, 64550), (12910, 63250), (13750, 59386), (14201, 57500), (14375, 56804), (25300, 32275), (25820, 31625), (27500, 29693), (28402, 28750)]