80890420

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{18301}}^1$

素因数の和:18340

約数の個数: 48

約数和(自身を含む): 193708368

約数和(自身を除く): 112817948

約数列:

[1, 2, 4, 5, 10, 13, 17, 20, 26, 34, 52, 65, 68, 85, 130, 170, 221, 260, 340, 442, 884, 1105, 2210, 4420, 18301, 36602, 73204, 91505, 183010, 237913, 311117, 366020, 475826, 622234, 951652, 1189565, 1244468, 1555585, 2379130, 3111170, 4044521, 4758260, 6222340, 8089042, 16178084, 20222605, 40445210, 80890420]

約数ペア:

[(1, 80890420), (2, 40445210), (4, 20222605), (5, 16178084), (10, 8089042), (13, 6222340), (17, 4758260), (20, 4044521), (26, 3111170), (34, 2379130), (52, 1555585), (65, 1244468), (68, 1189565), (85, 951652), (130, 622234), (170, 475826), (221, 366020), (260, 311117), (340, 237913), (442, 183010), (884, 91505), (1105, 73204), (2210, 36602), (4420, 18301)]