19383595

素因数分解:

$5^1\times 7^1\times {\mathrm{11}}^2\times {\mathrm{23}}^1\times {\mathrm{199}}^1$

素因数の和:256

約数の個数: 48

約数和(自身を含む): 30643200

約数和(自身を除く): 11259605

約数列:

[1, 5, 7, 11, 23, 35, 55, 77, 115, 121, 161, 199, 253, 385, 605, 805, 847, 995, 1265, 1393, 1771, 2189, 2783, 4235, 4577, 6965, 8855, 10945, 13915, 15323, 19481, 22885, 24079, 32039, 50347, 76615, 97405, 120395, 160195, 168553, 251735, 352429, 553817, 842765, 1762145, 2769085, 3876719, 19383595]

約数ペア:

[(1, 19383595), (5, 3876719), (7, 2769085), (11, 1762145), (23, 842765), (35, 553817), (55, 352429), (77, 251735), (115, 168553), (121, 160195), (161, 120395), (199, 97405), (253, 76615), (385, 50347), (605, 32039), (805, 24079), (847, 22885), (995, 19481), (1265, 15323), (1393, 13915), (1771, 10945), (2189, 8855), (2783, 6965), (4235, 4577)]