1999125120

素因数分解:

$2^7\times 3^1\times 5^1\times {\mathrm{89}}^1\times {\mathrm{11699}}^1$

素因数の和:11810

約数の個数: 128

約数和(自身を含む): 6444360000

約数和(自身を除く): 4445234880

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 16, 20, 24, 30, 32, 40, 48, 60, 64, 80, 89, 96, 120, 128, 160, 178, 192, 240, 267, 320, 356, 384, 445, 480, 534, 640, 712, 890, 960, 1068, 1335, 1424, 1780, 1920, 2136, 2670, 2848, 3560, 4272, 5340, 5696, 7120, 8544, 10680, 11392, 11699, 14240, 17088, 21360, 23398, 28480, 34176, 35097, 42720, 46796, 56960, 58495, 70194, 85440, 93592, 116990, 140388, 170880, 175485, 187184, 233980, 280776, 350970, 374368, 467960, 561552, 701940, 748736, 935920, 1041211, 1123104, 1403880, 1497472, 1871840, 2082422, 2246208, 2807760, 3123633, 3743680, 4164844, 4492416, 5206055, 5615520, 6247266, 7487360, 8329688, 10412110, 11231040, 12494532, 15618165, 16659376, 20824220, 22462080, 24989064, 31236330, 33318752, 41648440, 49978128, 62472660, 66637504, 83296880, 99956256, 124945320, 133275008, 166593760, 199912512, 249890640, 333187520, 399825024, 499781280, 666375040, 999562560, 1999125120]

約数ペア:

[(1, 1999125120), (2, 999562560), (3, 666375040), (4, 499781280), (5, 399825024), (6, 333187520), (8, 249890640), (10, 199912512), (12, 166593760), (15, 133275008), (16, 124945320), (20, 99956256), (24, 83296880), (30, 66637504), (32, 62472660), (40, 49978128), (48, 41648440), (60, 33318752), (64, 31236330), (80, 24989064), (89, 22462080), (96, 20824220), (120, 16659376), (128, 15618165), (160, 12494532), (178, 11231040), (192, 10412110), (240, 8329688), (267, 7487360), (320, 6247266), (356, 5615520), (384, 5206055), (445, 4492416), (480, 4164844), (534, 3743680), (640, 3123633), (712, 2807760), (890, 2246208), (960, 2082422), (1068, 1871840), (1335, 1497472), (1424, 1403880), (1780, 1123104), (1920, 1041211), (2136, 935920), (2670, 748736), (2848, 701940), (3560, 561552), (4272, 467960), (5340, 374368), (5696, 350970), (7120, 280776), (8544, 233980), (10680, 187184), (11392, 175485), (11699, 170880), (14240, 140388), (17088, 116990), (21360, 93592), (23398, 85440), (28480, 70194), (34176, 58495), (35097, 56960), (42720, 46796)]