12399440

素因数分解:

$2^4\times 5^1\times {\mathrm{37}}^1\times {\mathrm{59}}^1\times {\mathrm{71}}^1$

素因数の和:180

約数の個数: 80

約数和(自身を含む): 30533760

約数和(自身を除く): 18134320

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 37, 40, 59, 71, 74, 80, 118, 142, 148, 185, 236, 284, 295, 296, 355, 370, 472, 568, 590, 592, 710, 740, 944, 1136, 1180, 1420, 1480, 2183, 2360, 2627, 2840, 2960, 4189, 4366, 4720, 5254, 5680, 8378, 8732, 10508, 10915, 13135, 16756, 17464, 20945, 21016, 21830, 26270, 33512, 34928, 41890, 42032, 43660, 52540, 67024, 83780, 87320, 105080, 154993, 167560, 174640, 210160, 309986, 335120, 619972, 774965, 1239944, 1549930, 2479888, 3099860, 6199720, 12399440]

約数ペア:

[(1, 12399440), (2, 6199720), (4, 3099860), (5, 2479888), (8, 1549930), (10, 1239944), (16, 774965), (20, 619972), (37, 335120), (40, 309986), (59, 210160), (71, 174640), (74, 167560), (80, 154993), (118, 105080), (142, 87320), (148, 83780), (185, 67024), (236, 52540), (284, 43660), (295, 42032), (296, 41890), (355, 34928), (370, 33512), (472, 26270), (568, 21830), (590, 21016), (592, 20945), (710, 17464), (740, 16756), (944, 13135), (1136, 10915), (1180, 10508), (1420, 8732), (1480, 8378), (2183, 5680), (2360, 5254), (2627, 4720), (2840, 4366), (2960, 4189)]