201278720

素因数分解:

$2^8\times 5^1\times {\mathrm{67}}^1\times {\mathrm{2347}}^1$

素因数の和:2435

約数の個数: 72

約数和(自身を含む): 489529824

約数和(自身を除く): 288251104

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 67, 80, 128, 134, 160, 256, 268, 320, 335, 536, 640, 670, 1072, 1280, 1340, 2144, 2347, 2680, 4288, 4694, 5360, 8576, 9388, 10720, 11735, 17152, 18776, 21440, 23470, 37552, 42880, 46940, 75104, 85760, 93880, 150208, 157249, 187760, 300416, 314498, 375520, 600832, 628996, 751040, 786245, 1257992, 1502080, 1572490, 2515984, 3004160, 3144980, 5031968, 6289960, 10063936, 12579920, 20127872, 25159840, 40255744, 50319680, 100639360, 201278720]

約数ペア:

[(1, 201278720), (2, 100639360), (4, 50319680), (5, 40255744), (8, 25159840), (10, 20127872), (16, 12579920), (20, 10063936), (32, 6289960), (40, 5031968), (64, 3144980), (67, 3004160), (80, 2515984), (128, 1572490), (134, 1502080), (160, 1257992), (256, 786245), (268, 751040), (320, 628996), (335, 600832), (536, 375520), (640, 314498), (670, 300416), (1072, 187760), (1280, 157249), (1340, 150208), (2144, 93880), (2347, 85760), (2680, 75104), (4288, 46940), (4694, 42880), (5360, 37552), (8576, 23470), (9388, 21440), (10720, 18776), (11735, 17152)]