1291245340

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{838471}}^1$

素因数の和:838498

約数の個数: 48

約数和(自身を含む): 3380719104

約数和(自身を除く): 2089473764

約数列:

[1, 2, 4, 5, 7, 10, 11, 14, 20, 22, 28, 35, 44, 55, 70, 77, 110, 140, 154, 220, 308, 385, 770, 1540, 838471, 1676942, 3353884, 4192355, 5869297, 8384710, 9223181, 11738594, 16769420, 18446362, 23477188, 29346485, 36892724, 46115905, 58692970, 64562267, 92231810, 117385940, 129124534, 184463620, 258249068, 322811335, 645622670, 1291245340]

約数ペア:

[(1, 1291245340), (2, 645622670), (4, 322811335), (5, 258249068), (7, 184463620), (10, 129124534), (11, 117385940), (14, 92231810), (20, 64562267), (22, 58692970), (28, 46115905), (35, 36892724), (44, 29346485), (55, 23477188), (70, 18446362), (77, 16769420), (110, 11738594), (140, 9223181), (154, 8384710), (220, 5869297), (308, 4192355), (385, 3353884), (770, 1676942), (1540, 838471)]