280663500

素因数分解:

$2^2\times 3^1\times 5^3\times {\mathrm{13}}^1\times {\mathrm{37}}^1\times {\mathrm{389}}^1$

素因数の和:461

約数の個数: 192

約数和(自身を含む): 906272640

約数和(自身を除く): 625609140

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 13, 15, 20, 25, 26, 30, 37, 39, 50, 52, 60, 65, 74, 75, 78, 100, 111, 125, 130, 148, 150, 156, 185, 195, 222, 250, 260, 300, 325, 370, 375, 389, 390, 444, 481, 500, 555, 650, 740, 750, 778, 780, 925, 962, 975, 1110, 1167, 1300, 1443, 1500, 1556, 1625, 1850, 1924, 1945, 1950, 2220, 2334, 2405, 2775, 2886, 3250, 3700, 3890, 3900, 4625, 4668, 4810, 4875, 5057, 5550, 5772, 5835, 6500, 7215, 7780, 9250, 9620, 9725, 9750, 10114, 11100, 11670, 12025, 13875, 14393, 14430, 15171, 18500, 19450, 19500, 20228, 23340, 24050, 25285, 27750, 28786, 28860, 29175, 30342, 36075, 38900, 43179, 48100, 48625, 50570, 55500, 57572, 58350, 60125, 60684, 71965, 72150, 75855, 86358, 97250, 101140, 116700, 120250, 126425, 143930, 144300, 145875, 151710, 172716, 180375, 187109, 194500, 215895, 240500, 252850, 287860, 291750, 303420, 359825, 360750, 374218, 379275, 431790, 505700, 561327, 583500, 632125, 719650, 721500, 748436, 758550, 863580, 935545, 1079475, 1122654, 1264250, 1439300, 1517100, 1799125, 1871090, 1896375, 2158950, 2245308, 2528500, 2806635, 3598250, 3742180, 3792750, 4317900, 4677725, 5397375, 5613270, 7196500, 7585500, 9355450, 10794750, 11226540, 14033175, 18710900, 21589500, 23388625, 28066350, 46777250, 56132700, 70165875, 93554500, 140331750, 280663500]

約数ペア:

[(1, 280663500), (2, 140331750), (3, 93554500), (4, 70165875), (5, 56132700), (6, 46777250), (10, 28066350), (12, 23388625), (13, 21589500), (15, 18710900), (20, 14033175), (25, 11226540), (26, 10794750), (30, 9355450), (37, 7585500), (39, 7196500), (50, 5613270), (52, 5397375), (60, 4677725), (65, 4317900), (74, 3792750), (75, 3742180), (78, 3598250), (100, 2806635), (111, 2528500), (125, 2245308), (130, 2158950), (148, 1896375), (150, 1871090), (156, 1799125), (185, 1517100), (195, 1439300), (222, 1264250), (250, 1122654), (260, 1079475), (300, 935545), (325, 863580), (370, 758550), (375, 748436), (389, 721500), (390, 719650), (444, 632125), (481, 583500), (500, 561327), (555, 505700), (650, 431790), (740, 379275), (750, 374218), (778, 360750), (780, 359825), (925, 303420), (962, 291750), (975, 287860), (1110, 252850), (1167, 240500), (1300, 215895), (1443, 194500), (1500, 187109), (1556, 180375), (1625, 172716), (1850, 151710), (1924, 145875), (1945, 144300), (1950, 143930), (2220, 126425), (2334, 120250), (2405, 116700), (2775, 101140), (2886, 97250), (3250, 86358), (3700, 75855), (3890, 72150), (3900, 71965), (4625, 60684), (4668, 60125), (4810, 58350), (4875, 57572), (5057, 55500), (5550, 50570), (5772, 48625), (5835, 48100), (6500, 43179), (7215, 38900), (7780, 36075), (9250, 30342), (9620, 29175), (9725, 28860), (9750, 28786), (10114, 27750), (11100, 25285), (11670, 24050), (12025, 23340), (13875, 20228), (14393, 19500), (14430, 19450), (15171, 18500)]