422553340

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{97}}^1\times {\mathrm{19801}}^1$

素因数の和:19918

約数の個数: 48

約数和(自身を含む): 978060384

約数和(自身を除く): 555507044

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 44, 55, 97, 110, 194, 220, 388, 485, 970, 1067, 1940, 2134, 4268, 5335, 10670, 19801, 21340, 39602, 79204, 99005, 198010, 217811, 396020, 435622, 871244, 1089055, 1920697, 2178110, 3841394, 4356220, 7682788, 9603485, 19206970, 21127667, 38413940, 42255334, 84510668, 105638335, 211276670, 422553340]

約数ペア:

[(1, 422553340), (2, 211276670), (4, 105638335), (5, 84510668), (10, 42255334), (11, 38413940), (20, 21127667), (22, 19206970), (44, 9603485), (55, 7682788), (97, 4356220), (110, 3841394), (194, 2178110), (220, 1920697), (388, 1089055), (485, 871244), (970, 435622), (1067, 396020), (1940, 217811), (2134, 198010), (4268, 99005), (5335, 79204), (10670, 39602), (19801, 21340)]