199440290

素因数分解:

$2^1\times 5^1\times 7^2\times {\mathrm{191}}^1\times {\mathrm{2131}}^1$

素因数の和:2343

約数の個数: 48

約数和(自身を含む): 419986944

約数和(自身を除く): 220546654

約数列:

[1, 2, 5, 7, 10, 14, 35, 49, 70, 98, 191, 245, 382, 490, 955, 1337, 1910, 2131, 2674, 4262, 6685, 9359, 10655, 13370, 14917, 18718, 21310, 29834, 46795, 74585, 93590, 104419, 149170, 208838, 407021, 522095, 814042, 1044190, 2035105, 2849147, 4070210, 5698294, 14245735, 19944029, 28491470, 39888058, 99720145, 199440290]

約数ペア:

[(1, 199440290), (2, 99720145), (5, 39888058), (7, 28491470), (10, 19944029), (14, 14245735), (35, 5698294), (49, 4070210), (70, 2849147), (98, 2035105), (191, 1044190), (245, 814042), (382, 522095), (490, 407021), (955, 208838), (1337, 149170), (1910, 104419), (2131, 93590), (2674, 74585), (4262, 46795), (6685, 29834), (9359, 21310), (10655, 18718), (13370, 14917)]