19397820

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{13}}^2\times {\mathrm{1913}}^1$

素因数の和:1951

約数の個数: 72

約数和(自身を含む): 58844016

約数和(自身を除く): 39446196

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 13, 15, 20, 26, 30, 39, 52, 60, 65, 78, 130, 156, 169, 195, 260, 338, 390, 507, 676, 780, 845, 1014, 1690, 1913, 2028, 2535, 3380, 3826, 5070, 5739, 7652, 9565, 10140, 11478, 19130, 22956, 24869, 28695, 38260, 49738, 57390, 74607, 99476, 114780, 124345, 149214, 248690, 298428, 323297, 373035, 497380, 646594, 746070, 969891, 1293188, 1492140, 1616485, 1939782, 3232970, 3879564, 4849455, 6465940, 9698910, 19397820]

約数ペア:

[(1, 19397820), (2, 9698910), (3, 6465940), (4, 4849455), (5, 3879564), (6, 3232970), (10, 1939782), (12, 1616485), (13, 1492140), (15, 1293188), (20, 969891), (26, 746070), (30, 646594), (39, 497380), (52, 373035), (60, 323297), (65, 298428), (78, 248690), (130, 149214), (156, 124345), (169, 114780), (195, 99476), (260, 74607), (338, 57390), (390, 49738), (507, 38260), (676, 28695), (780, 24869), (845, 22956), (1014, 19130), (1690, 11478), (1913, 10140), (2028, 9565), (2535, 7652), (3380, 5739), (3826, 5070)]