4650940

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{139}}^1\times {\mathrm{239}}^1$

素因数の和:394

約数の個数: 48

約数和(自身を含む): 11289600

約数和(自身を除く): 6638660

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 139, 140, 239, 278, 478, 556, 695, 956, 973, 1195, 1390, 1673, 1946, 2390, 2780, 3346, 3892, 4780, 4865, 6692, 8365, 9730, 16730, 19460, 33221, 33460, 66442, 132884, 166105, 232547, 332210, 465094, 664420, 930188, 1162735, 2325470, 4650940]

約数ペア:

[(1, 4650940), (2, 2325470), (4, 1162735), (5, 930188), (7, 664420), (10, 465094), (14, 332210), (20, 232547), (28, 166105), (35, 132884), (70, 66442), (139, 33460), (140, 33221), (239, 19460), (278, 16730), (478, 9730), (556, 8365), (695, 6692), (956, 4865), (973, 4780), (1195, 3892), (1390, 3346), (1673, 2780), (1946, 2390)]