1639300

素因数分解:

$2^2\times 5^2\times {\mathrm{13}}^2\times {\mathrm{97}}^1$

素因数の和:137

約数の個数: 54

約数和(自身を含む): 3891678

約数和(自身を除く): 2252378

約数列:

[1, 2, 4, 5, 10, 13, 20, 25, 26, 50, 52, 65, 97, 100, 130, 169, 194, 260, 325, 338, 388, 485, 650, 676, 845, 970, 1261, 1300, 1690, 1940, 2425, 2522, 3380, 4225, 4850, 5044, 6305, 8450, 9700, 12610, 16393, 16900, 25220, 31525, 32786, 63050, 65572, 81965, 126100, 163930, 327860, 409825, 819650, 1639300]

約数ペア:

[(1, 1639300), (2, 819650), (4, 409825), (5, 327860), (10, 163930), (13, 126100), (20, 81965), (25, 65572), (26, 63050), (50, 32786), (52, 31525), (65, 25220), (97, 16900), (100, 16393), (130, 12610), (169, 9700), (194, 8450), (260, 6305), (325, 5044), (338, 4850), (388, 4225), (485, 3380), (650, 2522), (676, 2425), (845, 1940), (970, 1690), (1261, 1300)]