15816220

素因数分解:

$2^2\times 5^1\times 7^2\times {\mathrm{16139}}^1$

素因数の和:16162

約数の個数: 36

約数和(自身を含む): 38639160

約数和(自身を除く): 22822940

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 49, 70, 98, 140, 196, 245, 490, 980, 16139, 32278, 64556, 80695, 112973, 161390, 225946, 322780, 451892, 564865, 790811, 1129730, 1581622, 2259460, 3163244, 3954055, 7908110, 15816220]

約数ペア:

[(1, 15816220), (2, 7908110), (4, 3954055), (5, 3163244), (7, 2259460), (10, 1581622), (14, 1129730), (20, 790811), (28, 564865), (35, 451892), (49, 322780), (70, 225946), (98, 161390), (140, 112973), (196, 80695), (245, 64556), (490, 32278), (980, 16139)]