491620220

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{270121}}^1$

素因数の和:270150

約数の個数: 48

約数和(自身を含む): 1270653888

約数和(自身を除く): 779033668

約数列:

[1, 2, 4, 5, 7, 10, 13, 14, 20, 26, 28, 35, 52, 65, 70, 91, 130, 140, 182, 260, 364, 455, 910, 1820, 270121, 540242, 1080484, 1350605, 1890847, 2701210, 3511573, 3781694, 5402420, 7023146, 7563388, 9454235, 14046292, 17557865, 18908470, 24581011, 35115730, 37816940, 49162022, 70231460, 98324044, 122905055, 245810110, 491620220]

約数ペア:

[(1, 491620220), (2, 245810110), (4, 122905055), (5, 98324044), (7, 70231460), (10, 49162022), (13, 37816940), (14, 35115730), (20, 24581011), (26, 18908470), (28, 17557865), (35, 14046292), (52, 9454235), (65, 7563388), (70, 7023146), (91, 5402420), (130, 3781694), (140, 3511573), (182, 2701210), (260, 1890847), (364, 1350605), (455, 1080484), (910, 540242), (1820, 270121)]