19864800

素因数分解:

$2^5\times 3^2\times 5^2\times {\mathrm{31}}^1\times {\mathrm{89}}^1$

素因数の和:146

約数の個数: 216

約数和(自身を含む): 73120320

約数和(自身を除く): 53255520

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 16, 18, 20, 24, 25, 30, 31, 32, 36, 40, 45, 48, 50, 60, 62, 72, 75, 80, 89, 90, 93, 96, 100, 120, 124, 144, 150, 155, 160, 178, 180, 186, 200, 225, 240, 248, 267, 279, 288, 300, 310, 356, 360, 372, 400, 445, 450, 465, 480, 496, 534, 558, 600, 620, 712, 720, 744, 775, 800, 801, 890, 900, 930, 992, 1068, 1116, 1200, 1240, 1335, 1395, 1424, 1440, 1488, 1550, 1602, 1780, 1800, 1860, 2136, 2225, 2232, 2325, 2400, 2480, 2670, 2759, 2790, 2848, 2976, 3100, 3204, 3560, 3600, 3720, 4005, 4272, 4450, 4464, 4650, 4960, 5340, 5518, 5580, 6200, 6408, 6675, 6975, 7120, 7200, 7440, 8010, 8277, 8544, 8900, 8928, 9300, 10680, 11036, 11160, 12400, 12816, 13350, 13795, 13950, 14240, 14880, 16020, 16554, 17800, 18600, 20025, 21360, 22072, 22320, 24800, 24831, 25632, 26700, 27590, 27900, 32040, 33108, 35600, 37200, 40050, 41385, 42720, 44144, 44640, 49662, 53400, 55180, 55800, 64080, 66216, 68975, 71200, 74400, 80100, 82770, 88288, 99324, 106800, 110360, 111600, 124155, 128160, 132432, 137950, 160200, 165540, 198648, 206925, 213600, 220720, 223200, 248310, 264864, 275900, 320400, 331080, 397296, 413850, 441440, 496620, 551800, 620775, 640800, 662160, 794592, 827700, 993240, 1103600, 1241550, 1324320, 1655400, 1986480, 2207200, 2483100, 3310800, 3972960, 4966200, 6621600, 9932400, 19864800]

約数ペア:

[(1, 19864800), (2, 9932400), (3, 6621600), (4, 4966200), (5, 3972960), (6, 3310800), (8, 2483100), (9, 2207200), (10, 1986480), (12, 1655400), (15, 1324320), (16, 1241550), (18, 1103600), (20, 993240), (24, 827700), (25, 794592), (30, 662160), (31, 640800), (32, 620775), (36, 551800), (40, 496620), (45, 441440), (48, 413850), (50, 397296), (60, 331080), (62, 320400), (72, 275900), (75, 264864), (80, 248310), (89, 223200), (90, 220720), (93, 213600), (96, 206925), (100, 198648), (120, 165540), (124, 160200), (144, 137950), (150, 132432), (155, 128160), (160, 124155), (178, 111600), (180, 110360), (186, 106800), (200, 99324), (225, 88288), (240, 82770), (248, 80100), (267, 74400), (279, 71200), (288, 68975), (300, 66216), (310, 64080), (356, 55800), (360, 55180), (372, 53400), (400, 49662), (445, 44640), (450, 44144), (465, 42720), (480, 41385), (496, 40050), (534, 37200), (558, 35600), (600, 33108), (620, 32040), (712, 27900), (720, 27590), (744, 26700), (775, 25632), (800, 24831), (801, 24800), (890, 22320), (900, 22072), (930, 21360), (992, 20025), (1068, 18600), (1116, 17800), (1200, 16554), (1240, 16020), (1335, 14880), (1395, 14240), (1424, 13950), (1440, 13795), (1488, 13350), (1550, 12816), (1602, 12400), (1780, 11160), (1800, 11036), (1860, 10680), (2136, 9300), (2225, 8928), (2232, 8900), (2325, 8544), (2400, 8277), (2480, 8010), (2670, 7440), (2759, 7200), (2790, 7120), (2848, 6975), (2976, 6675), (3100, 6408), (3204, 6200), (3560, 5580), (3600, 5518), (3720, 5340), (4005, 4960), (4272, 4650), (4450, 4464)]