207612980

素因数分解:

$2^2\times 5^1\times {\mathrm{97}}^1\times {\mathrm{103}}^1\times {\mathrm{1039}}^1$

素因数の和:1248

約数の個数: 48

約数和(自身を含む): 445186560

約数和(自身を除く): 237573580

約数列:

[1, 2, 4, 5, 10, 20, 97, 103, 194, 206, 388, 412, 485, 515, 970, 1030, 1039, 1940, 2060, 2078, 4156, 5195, 9991, 10390, 19982, 20780, 39964, 49955, 99910, 100783, 107017, 199820, 201566, 214034, 403132, 428068, 503915, 535085, 1007830, 1070170, 2015660, 2140340, 10380649, 20761298, 41522596, 51903245, 103806490, 207612980]

約数ペア:

[(1, 207612980), (2, 103806490), (4, 51903245), (5, 41522596), (10, 20761298), (20, 10380649), (97, 2140340), (103, 2015660), (194, 1070170), (206, 1007830), (388, 535085), (412, 503915), (485, 428068), (515, 403132), (970, 214034), (1030, 201566), (1039, 199820), (1940, 107017), (2060, 100783), (2078, 99910), (4156, 49955), (5195, 39964), (9991, 20780), (10390, 19982)]