215989060

素因数分解:

$2^2\times 5^1\times 7^2\times {\mathrm{433}}^1\times {\mathrm{509}}^1$

素因数の和:965

約数の個数: 72

約数和(自身を含む): 529887960

約数和(自身を除く): 313898900

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 49, 70, 98, 140, 196, 245, 433, 490, 509, 866, 980, 1018, 1732, 2036, 2165, 2545, 3031, 3563, 4330, 5090, 6062, 7126, 8660, 10180, 12124, 14252, 15155, 17815, 21217, 24941, 30310, 35630, 42434, 49882, 60620, 71260, 84868, 99764, 106085, 124705, 212170, 220397, 249410, 424340, 440794, 498820, 881588, 1101985, 1542779, 2203970, 3085558, 4407940, 6171116, 7713895, 10799453, 15427790, 21598906, 30855580, 43197812, 53997265, 107994530, 215989060]

約数ペア:

[(1, 215989060), (2, 107994530), (4, 53997265), (5, 43197812), (7, 30855580), (10, 21598906), (14, 15427790), (20, 10799453), (28, 7713895), (35, 6171116), (49, 4407940), (70, 3085558), (98, 2203970), (140, 1542779), (196, 1101985), (245, 881588), (433, 498820), (490, 440794), (509, 424340), (866, 249410), (980, 220397), (1018, 212170), (1732, 124705), (2036, 106085), (2165, 99764), (2545, 84868), (3031, 71260), (3563, 60620), (4330, 49882), (5090, 42434), (6062, 35630), (7126, 30310), (8660, 24941), (10180, 21217), (12124, 17815), (14252, 15155)]