28501672

素因数分解:

$2^3\times {\mathrm{19}}^2\times {\mathrm{71}}^1\times {\mathrm{139}}^1$

素因数の和:254

約数の個数: 48

約数和(自身を含む): 57607200

約数和(自身を除く): 29105528

約数列:

[1, 2, 4, 8, 19, 38, 71, 76, 139, 142, 152, 278, 284, 361, 556, 568, 722, 1112, 1349, 1444, 2641, 2698, 2888, 5282, 5396, 9869, 10564, 10792, 19738, 21128, 25631, 39476, 50179, 51262, 78952, 100358, 102524, 187511, 200716, 205048, 375022, 401432, 750044, 1500088, 3562709, 7125418, 14250836, 28501672]

約数ペア:

[(1, 28501672), (2, 14250836), (4, 7125418), (8, 3562709), (19, 1500088), (38, 750044), (71, 401432), (76, 375022), (139, 205048), (142, 200716), (152, 187511), (278, 102524), (284, 100358), (361, 78952), (556, 51262), (568, 50179), (722, 39476), (1112, 25631), (1349, 21128), (1444, 19738), (2641, 10792), (2698, 10564), (2888, 9869), (5282, 5396)]