643370

素因数分解:

$2^1\times 5^1\times 7^2\times {\mathrm{13}}^1\times {\mathrm{101}}^1$

素因数の和:135

約数の個数: 48

約数和(自身を含む): 1465128

約数和(自身を除く): 821758

約数列:

[1, 2, 5, 7, 10, 13, 14, 26, 35, 49, 65, 70, 91, 98, 101, 130, 182, 202, 245, 455, 490, 505, 637, 707, 910, 1010, 1274, 1313, 1414, 2626, 3185, 3535, 4949, 6370, 6565, 7070, 9191, 9898, 13130, 18382, 24745, 45955, 49490, 64337, 91910, 128674, 321685, 643370]

約数ペア:

[(1, 643370), (2, 321685), (5, 128674), (7, 91910), (10, 64337), (13, 49490), (14, 45955), (26, 24745), (35, 18382), (49, 13130), (65, 9898), (70, 9191), (91, 7070), (98, 6565), (101, 6370), (130, 4949), (182, 3535), (202, 3185), (245, 2626), (455, 1414), (490, 1313), (505, 1274), (637, 1010), (707, 910)]