198396520

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{708559}}^1$

素因数の和:708577

約数の個数: 32

約数和(自身を含む): 510163200

約数和(自身を除く): 311766680

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 56, 70, 140, 280, 708559, 1417118, 2834236, 3542795, 4959913, 5668472, 7085590, 9919826, 14171180, 19839652, 24799565, 28342360, 39679304, 49599130, 99198260, 198396520]

約数ペア:

[(1, 198396520), (2, 99198260), (4, 49599130), (5, 39679304), (7, 28342360), (8, 24799565), (10, 19839652), (14, 14171180), (20, 9919826), (28, 7085590), (35, 5668472), (40, 4959913), (56, 3542795), (70, 2834236), (140, 1417118), (280, 708559)]