19230740

素因数分解:

$2^2\times 5^1\times {\mathrm{17}}^1\times {\mathrm{163}}^1\times {\mathrm{347}}^1$

素因数の和:536

約数の個数: 48

約数和(自身を含む): 43146432

約数和(自身を除く): 23915692

約数列:

[1, 2, 4, 5, 10, 17, 20, 34, 68, 85, 163, 170, 326, 340, 347, 652, 694, 815, 1388, 1630, 1735, 2771, 3260, 3470, 5542, 5899, 6940, 11084, 11798, 13855, 23596, 27710, 29495, 55420, 56561, 58990, 113122, 117980, 226244, 282805, 565610, 961537, 1131220, 1923074, 3846148, 4807685, 9615370, 19230740]

約数ペア:

[(1, 19230740), (2, 9615370), (4, 4807685), (5, 3846148), (10, 1923074), (17, 1131220), (20, 961537), (34, 565610), (68, 282805), (85, 226244), (163, 117980), (170, 113122), (326, 58990), (340, 56561), (347, 55420), (652, 29495), (694, 27710), (815, 23596), (1388, 13855), (1630, 11798), (1735, 11084), (2771, 6940), (3260, 5899), (3470, 5542)]