28665980

素因数分解:

$2^2\times 5^1\times 7^2\times {\mathrm{29251}}^1$

素因数の和:29274

約数の個数: 36

約数和(自身を含む): 70029288

約数和(自身を除く): 41363308

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 49, 70, 98, 140, 196, 245, 490, 980, 29251, 58502, 117004, 146255, 204757, 292510, 409514, 585020, 819028, 1023785, 1433299, 2047570, 2866598, 4095140, 5733196, 7166495, 14332990, 28665980]

約数ペア:

[(1, 28665980), (2, 14332990), (4, 7166495), (5, 5733196), (7, 4095140), (10, 2866598), (14, 2047570), (20, 1433299), (28, 1023785), (35, 819028), (49, 585020), (70, 409514), (98, 292510), (140, 204757), (196, 146255), (245, 117004), (490, 58502), (980, 29251)]