81387600

素因数分解:

$2^4\times 3^1\times 5^2\times 7^1\times {\mathrm{9689}}^1$

素因数の和:9717

約数の個数: 120

約数和(自身を含む): 297986880

約数和(自身を除く): 216599280

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 10, 12, 14, 15, 16, 20, 21, 24, 25, 28, 30, 35, 40, 42, 48, 50, 56, 60, 70, 75, 80, 84, 100, 105, 112, 120, 140, 150, 168, 175, 200, 210, 240, 280, 300, 336, 350, 400, 420, 525, 560, 600, 700, 840, 1050, 1200, 1400, 1680, 2100, 2800, 4200, 8400, 9689, 19378, 29067, 38756, 48445, 58134, 67823, 77512, 96890, 116268, 135646, 145335, 155024, 193780, 203469, 232536, 242225, 271292, 290670, 339115, 387560, 406938, 465072, 484450, 542584, 581340, 678230, 726675, 775120, 813876, 968900, 1017345, 1085168, 1162680, 1356460, 1453350, 1627752, 1695575, 1937800, 2034690, 2325360, 2712920, 2906700, 3255504, 3391150, 3875600, 4069380, 5086725, 5425840, 5813400, 6782300, 8138760, 10173450, 11626800, 13564600, 16277520, 20346900, 27129200, 40693800, 81387600]

約数ペア:

[(1, 81387600), (2, 40693800), (3, 27129200), (4, 20346900), (5, 16277520), (6, 13564600), (7, 11626800), (8, 10173450), (10, 8138760), (12, 6782300), (14, 5813400), (15, 5425840), (16, 5086725), (20, 4069380), (21, 3875600), (24, 3391150), (25, 3255504), (28, 2906700), (30, 2712920), (35, 2325360), (40, 2034690), (42, 1937800), (48, 1695575), (50, 1627752), (56, 1453350), (60, 1356460), (70, 1162680), (75, 1085168), (80, 1017345), (84, 968900), (100, 813876), (105, 775120), (112, 726675), (120, 678230), (140, 581340), (150, 542584), (168, 484450), (175, 465072), (200, 406938), (210, 387560), (240, 339115), (280, 290670), (300, 271292), (336, 242225), (350, 232536), (400, 203469), (420, 193780), (525, 155024), (560, 145335), (600, 135646), (700, 116268), (840, 96890), (1050, 77512), (1200, 67823), (1400, 58134), (1680, 48445), (2100, 38756), (2800, 29067), (4200, 19378), (8400, 9689)]