17996420

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{3643}}^1$

素因数の和:3684

約数の個数: 48

約数和(自身を含む): 42853440

約数和(自身を除く): 24857020

約数列:

[1, 2, 4, 5, 10, 13, 19, 20, 26, 38, 52, 65, 76, 95, 130, 190, 247, 260, 380, 494, 988, 1235, 2470, 3643, 4940, 7286, 14572, 18215, 36430, 47359, 69217, 72860, 94718, 138434, 189436, 236795, 276868, 346085, 473590, 692170, 899821, 947180, 1384340, 1799642, 3599284, 4499105, 8998210, 17996420]

約数ペア:

[(1, 17996420), (2, 8998210), (4, 4499105), (5, 3599284), (10, 1799642), (13, 1384340), (19, 947180), (20, 899821), (26, 692170), (38, 473590), (52, 346085), (65, 276868), (76, 236795), (95, 189436), (130, 138434), (190, 94718), (247, 72860), (260, 69217), (380, 47359), (494, 36430), (988, 18215), (1235, 14572), (2470, 7286), (3643, 4940)]