987640320

素因数分解:

$2^9\times 3^1\times 5^1\times {\mathrm{128599}}^1$

素因数の和:128625

約数の個数: 80

約数和(自身を含む): 3157387200

約数和(自身を除く): 2169746880

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 16, 20, 24, 30, 32, 40, 48, 60, 64, 80, 96, 120, 128, 160, 192, 240, 256, 320, 384, 480, 512, 640, 768, 960, 1280, 1536, 1920, 2560, 3840, 7680, 128599, 257198, 385797, 514396, 642995, 771594, 1028792, 1285990, 1543188, 1928985, 2057584, 2571980, 3086376, 3857970, 4115168, 5143960, 6172752, 7715940, 8230336, 10287920, 12345504, 15431880, 16460672, 20575840, 24691008, 30863760, 32921344, 41151680, 49382016, 61727520, 65842688, 82303360, 98764032, 123455040, 164606720, 197528064, 246910080, 329213440, 493820160, 987640320]

約数ペア:

[(1, 987640320), (2, 493820160), (3, 329213440), (4, 246910080), (5, 197528064), (6, 164606720), (8, 123455040), (10, 98764032), (12, 82303360), (15, 65842688), (16, 61727520), (20, 49382016), (24, 41151680), (30, 32921344), (32, 30863760), (40, 24691008), (48, 20575840), (60, 16460672), (64, 15431880), (80, 12345504), (96, 10287920), (120, 8230336), (128, 7715940), (160, 6172752), (192, 5143960), (240, 4115168), (256, 3857970), (320, 3086376), (384, 2571980), (480, 2057584), (512, 1928985), (640, 1543188), (768, 1285990), (960, 1028792), (1280, 771594), (1536, 642995), (1920, 514396), (2560, 385797), (3840, 257198), (7680, 128599)]