20121802568

素因数分解:

$2^3\times 7^2\times {\mathrm{101}}^1\times {\mathrm{508229}}^1$

素因数の和:508350

約数の個数: 48

約数和(自身を含む): 44322738300

約数和(自身を除く): 24200935732

約数列:

[1, 2, 4, 7, 8, 14, 28, 49, 56, 98, 101, 196, 202, 392, 404, 707, 808, 1414, 2828, 4949, 5656, 9898, 19796, 39592, 508229, 1016458, 2032916, 3557603, 4065832, 7115206, 14230412, 24903221, 28460824, 49806442, 51331129, 99612884, 102662258, 199225768, 205324516, 359317903, 410649032, 718635806, 1437271612, 2515225321, 2874543224, 5030450642, 10060901284, 20121802568]

約数ペア:

[(1, 20121802568), (2, 10060901284), (4, 5030450642), (7, 2874543224), (8, 2515225321), (14, 1437271612), (28, 718635806), (49, 410649032), (56, 359317903), (98, 205324516), (101, 199225768), (196, 102662258), (202, 99612884), (392, 51331129), (404, 49806442), (707, 28460824), (808, 24903221), (1414, 14230412), (2828, 7115206), (4949, 4065832), (5656, 3557603), (9898, 2032916), (19796, 1016458), (39592, 508229)]