19362980

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{10639}}^1$

素因数の和:10668

約数の個数: 48

約数和(自身を含む): 50050560

約数和(自身を除く): 30687580

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, 10639, 21278, 42556, 53195, 74473, 106390, 138307, 148946, 212780, 276614, 297892, 372365, 553228, 691535, 744730, 968149, 1383070, 1489460, 1936298, 2766140, 3872596, 4840745, 9681490, 19362980]

約数ペア:

[(1, 19362980), (2, 9681490), (4, 4840745), (5, 3872596), (7, 2766140), (10, 1936298), (13, 1489460), (14, 1383070), (20, 968149), (26, 744730), (28, 691535), (35, 553228), (52, 372365), (65, 297892), (70, 276614), (91, 212780), (130, 148946), (140, 138307), (182, 106390), (260, 74473), (364, 53195), (455, 42556), (910, 21278), (1820, 10639)]