12884350720

素因数分解:

$2^8\times 5^1\times {\mathrm{409}}^1\times {\mathrm{24611}}^1$

素因数の和:25041

約数の個数: 72

約数和(自身を含む): 30938760720

約数和(自身を除く): 18054410000

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 128, 160, 256, 320, 409, 640, 818, 1280, 1636, 2045, 3272, 4090, 6544, 8180, 13088, 16360, 24611, 26176, 32720, 49222, 52352, 65440, 98444, 104704, 123055, 130880, 196888, 246110, 261760, 393776, 492220, 523520, 787552, 984440, 1575104, 1968880, 3150208, 3937760, 6300416, 7875520, 10065899, 15751040, 20131798, 31502080, 40263596, 50329495, 80527192, 100658990, 161054384, 201317980, 322108768, 402635960, 644217536, 805271920, 1288435072, 1610543840, 2576870144, 3221087680, 6442175360, 12884350720]

約数ペア:

[(1, 12884350720), (2, 6442175360), (4, 3221087680), (5, 2576870144), (8, 1610543840), (10, 1288435072), (16, 805271920), (20, 644217536), (32, 402635960), (40, 322108768), (64, 201317980), (80, 161054384), (128, 100658990), (160, 80527192), (256, 50329495), (320, 40263596), (409, 31502080), (640, 20131798), (818, 15751040), (1280, 10065899), (1636, 7875520), (2045, 6300416), (3272, 3937760), (4090, 3150208), (6544, 1968880), (8180, 1575104), (13088, 984440), (16360, 787552), (24611, 523520), (26176, 492220), (32720, 393776), (49222, 261760), (52352, 246110), (65440, 196888), (98444, 130880), (104704, 123055)]