19873800

素因数分解:

$2^3\times 3^2\times 5^2\times {\mathrm{61}}^1\times {\mathrm{181}}^1$

素因数の和:264

約数の個数: 144

約数和(自身を含む): 68211780

約数和(自身を除く): 48337980

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 18, 20, 24, 25, 30, 36, 40, 45, 50, 60, 61, 72, 75, 90, 100, 120, 122, 150, 180, 181, 183, 200, 225, 244, 300, 305, 360, 362, 366, 450, 488, 543, 549, 600, 610, 724, 732, 900, 905, 915, 1086, 1098, 1220, 1448, 1464, 1525, 1629, 1800, 1810, 1830, 2172, 2196, 2440, 2715, 2745, 3050, 3258, 3620, 3660, 4344, 4392, 4525, 4575, 5430, 5490, 6100, 6516, 7240, 7320, 8145, 9050, 9150, 10860, 10980, 11041, 12200, 13032, 13575, 13725, 16290, 18100, 18300, 21720, 21960, 22082, 27150, 27450, 32580, 33123, 36200, 36600, 40725, 44164, 54300, 54900, 55205, 65160, 66246, 81450, 88328, 99369, 108600, 109800, 110410, 132492, 162900, 165615, 198738, 220820, 264984, 276025, 325800, 331230, 397476, 441640, 496845, 552050, 662460, 794952, 828075, 993690, 1104100, 1324920, 1656150, 1987380, 2208200, 2484225, 3312300, 3974760, 4968450, 6624600, 9936900, 19873800]

約数ペア:

[(1, 19873800), (2, 9936900), (3, 6624600), (4, 4968450), (5, 3974760), (6, 3312300), (8, 2484225), (9, 2208200), (10, 1987380), (12, 1656150), (15, 1324920), (18, 1104100), (20, 993690), (24, 828075), (25, 794952), (30, 662460), (36, 552050), (40, 496845), (45, 441640), (50, 397476), (60, 331230), (61, 325800), (72, 276025), (75, 264984), (90, 220820), (100, 198738), (120, 165615), (122, 162900), (150, 132492), (180, 110410), (181, 109800), (183, 108600), (200, 99369), (225, 88328), (244, 81450), (300, 66246), (305, 65160), (360, 55205), (362, 54900), (366, 54300), (450, 44164), (488, 40725), (543, 36600), (549, 36200), (600, 33123), (610, 32580), (724, 27450), (732, 27150), (900, 22082), (905, 21960), (915, 21720), (1086, 18300), (1098, 18100), (1220, 16290), (1448, 13725), (1464, 13575), (1525, 13032), (1629, 12200), (1800, 11041), (1810, 10980), (1830, 10860), (2172, 9150), (2196, 9050), (2440, 8145), (2715, 7320), (2745, 7240), (3050, 6516), (3258, 6100), (3620, 5490), (3660, 5430), (4344, 4575), (4392, 4525)]