221501080

素因数分解:

$2^3\times 5^1\times {\mathrm{101}}^1\times {\mathrm{109}}^1\times {\mathrm{503}}^1$

素因数の和:724

約数の個数: 64

約数和(自身を含む): 508939200

約数和(自身を除く): 287438120

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 101, 109, 202, 218, 404, 436, 503, 505, 545, 808, 872, 1006, 1010, 1090, 2012, 2020, 2180, 2515, 4024, 4040, 4360, 5030, 10060, 11009, 20120, 22018, 44036, 50803, 54827, 55045, 88072, 101606, 109654, 110090, 203212, 219308, 220180, 254015, 274135, 406424, 438616, 440360, 508030, 548270, 1016060, 1096540, 2032120, 2193080, 5537527, 11075054, 22150108, 27687635, 44300216, 55375270, 110750540, 221501080]

約数ペア:

[(1, 221501080), (2, 110750540), (4, 55375270), (5, 44300216), (8, 27687635), (10, 22150108), (20, 11075054), (40, 5537527), (101, 2193080), (109, 2032120), (202, 1096540), (218, 1016060), (404, 548270), (436, 508030), (503, 440360), (505, 438616), (545, 406424), (808, 274135), (872, 254015), (1006, 220180), (1010, 219308), (1090, 203212), (2012, 110090), (2020, 109654), (2180, 101606), (2515, 88072), (4024, 55045), (4040, 54827), (4360, 50803), (5030, 44036), (10060, 22018), (11009, 20120)]