19513960

素因数分解:

$2^3\times 5^1\times {\mathrm{17}}^1\times {\mathrm{28697}}^1$

素因数の和:28725

約数の個数: 32

約数和(自身を含む): 46490760

約数和(自身を除く): 26976800

約数列:

[1, 2, 4, 5, 8, 10, 17, 20, 34, 40, 68, 85, 136, 170, 340, 680, 28697, 57394, 114788, 143485, 229576, 286970, 487849, 573940, 975698, 1147880, 1951396, 2439245, 3902792, 4878490, 9756980, 19513960]

約数ペア:

[(1, 19513960), (2, 9756980), (4, 4878490), (5, 3902792), (8, 2439245), (10, 1951396), (17, 1147880), (20, 975698), (34, 573940), (40, 487849), (68, 286970), (85, 229576), (136, 143485), (170, 114788), (340, 57394), (680, 28697)]