19515860

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{10723}}^1$

素因数の和:10752

約数の個数: 48

約数和(自身を含む): 50445696

約数和(自身を除く): 30929836

約数列:

[1, 2, 4, 5, 7, 10, 13, 14, 20, 26, 28, 35, 52, 65, 70, 91, 130, 140, 182, 260, 364, 455, 910, 1820, 10723, 21446, 42892, 53615, 75061, 107230, 139399, 150122, 214460, 278798, 300244, 375305, 557596, 696995, 750610, 975793, 1393990, 1501220, 1951586, 2787980, 3903172, 4878965, 9757930, 19515860]

約数ペア:

[(1, 19515860), (2, 9757930), (4, 4878965), (5, 3903172), (7, 2787980), (10, 1951586), (13, 1501220), (14, 1393990), (20, 975793), (26, 750610), (28, 696995), (35, 557596), (52, 375305), (65, 300244), (70, 278798), (91, 214460), (130, 150122), (140, 139399), (182, 107230), (260, 75061), (364, 53615), (455, 42892), (910, 21446), (1820, 10723)]