209840640

素因数分解:

$2^9\times 3^1\times 5^1\times {\mathrm{89}}^1\times {\mathrm{307}}^1$

素因数の和:422

約数の個数: 160

約数和(自身を含む): 680581440

約数和(自身を除く): 470740800

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, 256, 267, 307, 320, 356, 384, 445, 480, 512, 534, 614, 640, 712, 768, 890, 921, 960, 1068, 1228, 1280, 1335, 1424, 1535, 1536, 1780, 1842, 1920, 2136, 2456, 2560, 2670, 2848, 3070, 3560, 3684, 3840, 4272, 4605, 4912, 5340, 5696, 6140, 7120, 7368, 7680, 8544, 9210, 9824, 10680, 11392, 12280, 14240, 14736, 17088, 18420, 19648, 21360, 22784, 24560, 27323, 28480, 29472, 34176, 36840, 39296, 42720, 45568, 49120, 54646, 56960, 58944, 68352, 73680, 78592, 81969, 85440, 98240, 109292, 113920, 117888, 136615, 136704, 147360, 157184, 163938, 170880, 196480, 218584, 227840, 235776, 273230, 294720, 327876, 341760, 392960, 409845, 437168, 471552, 546460, 589440, 655752, 683520, 785920, 819690, 874336, 1092920, 1178880, 1311504, 1639380, 1748672, 2185840, 2357760, 2623008, 3278760, 3497344, 4371680, 5246016, 6557520, 6994688, 8743360, 10492032, 13115040, 13989376, 17486720, 20984064, 26230080, 34973440, 41968128, 52460160, 69946880, 104920320, 209840640]

約数ペア:

[(1, 209840640), (2, 104920320), (3, 69946880), (4, 52460160), (5, 41968128), (6, 34973440), (8, 26230080), (10, 20984064), (12, 17486720), (15, 13989376), (16, 13115040), (20, 10492032), (24, 8743360), (30, 6994688), (32, 6557520), (40, 5246016), (48, 4371680), (60, 3497344), (64, 3278760), (80, 2623008), (89, 2357760), (96, 2185840), (120, 1748672), (128, 1639380), (160, 1311504), (178, 1178880), (192, 1092920), (240, 874336), (256, 819690), (267, 785920), (307, 683520), (320, 655752), (356, 589440), (384, 546460), (445, 471552), (480, 437168), (512, 409845), (534, 392960), (614, 341760), (640, 327876), (712, 294720), (768, 273230), (890, 235776), (921, 227840), (960, 218584), (1068, 196480), (1228, 170880), (1280, 163938), (1335, 157184), (1424, 147360), (1535, 136704), (1536, 136615), (1780, 117888), (1842, 113920), (1920, 109292), (2136, 98240), (2456, 85440), (2560, 81969), (2670, 78592), (2848, 73680), (3070, 68352), (3560, 58944), (3684, 56960), (3840, 54646), (4272, 49120), (4605, 45568), (4912, 42720), (5340, 39296), (5696, 36840), (6140, 34176), (7120, 29472), (7368, 28480), (7680, 27323), (8544, 24560), (9210, 22784), (9824, 21360), (10680, 19648), (11392, 18420), (12280, 17088), (14240, 14736)]