419119720

素因数分解:

$2^3\times 5^1\times {\mathrm{37}}^1\times {\mathrm{503}}^1\times {\mathrm{563}}^1$

素因数の和:1114

約数の個数: 64

約数和(自身を含む): 972155520

約数和(自身を除く): 553035800

約数列:

[1, 2, 4, 5, 8, 10, 20, 37, 40, 74, 148, 185, 296, 370, 503, 563, 740, 1006, 1126, 1480, 2012, 2252, 2515, 2815, 4024, 4504, 5030, 5630, 10060, 11260, 18611, 20120, 20831, 22520, 37222, 41662, 74444, 83324, 93055, 104155, 148888, 166648, 186110, 208310, 283189, 372220, 416620, 566378, 744440, 833240, 1132756, 1415945, 2265512, 2831890, 5663780, 10477993, 11327560, 20955986, 41911972, 52389965, 83823944, 104779930, 209559860, 419119720]

約数ペア:

[(1, 419119720), (2, 209559860), (4, 104779930), (5, 83823944), (8, 52389965), (10, 41911972), (20, 20955986), (37, 11327560), (40, 10477993), (74, 5663780), (148, 2831890), (185, 2265512), (296, 1415945), (370, 1132756), (503, 833240), (563, 744440), (740, 566378), (1006, 416620), (1126, 372220), (1480, 283189), (2012, 208310), (2252, 186110), (2515, 166648), (2815, 148888), (4024, 104155), (4504, 93055), (5030, 83324), (5630, 74444), (10060, 41662), (11260, 37222), (18611, 22520), (20120, 20831)]